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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 07:56:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 07:56:49 +0000 |
commit | a415c29efee45520ae252d2aa28f1083a521cd7b (patch) | |
tree | f4ade4b6668ecc0765de7e1424f7c1427ad433ff /wp-includes/js/imgareaselect | |
parent | Initial commit. (diff) | |
download | wordpress-a415c29efee45520ae252d2aa28f1083a521cd7b.tar.xz wordpress-a415c29efee45520ae252d2aa28f1083a521cd7b.zip |
Adding upstream version 6.4.3+dfsg1.upstream/6.4.3+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'wp-includes/js/imgareaselect')
-rw-r--r-- | wp-includes/js/imgareaselect/border-anim-h.gif | bin | 0 -> 178 bytes | |||
-rw-r--r-- | wp-includes/js/imgareaselect/border-anim-v.gif | bin | 0 -> 178 bytes | |||
-rw-r--r-- | wp-includes/js/imgareaselect/imgareaselect.css | 41 | ||||
-rw-r--r-- | wp-includes/js/imgareaselect/jquery.imgareaselect.js | 1248 | ||||
-rw-r--r-- | wp-includes/js/imgareaselect/jquery.imgareaselect.min.js | 1 |
5 files changed, 1290 insertions, 0 deletions
diff --git a/wp-includes/js/imgareaselect/border-anim-h.gif b/wp-includes/js/imgareaselect/border-anim-h.gif Binary files differnew file mode 100644 index 0000000..a964ebd --- /dev/null +++ b/wp-includes/js/imgareaselect/border-anim-h.gif diff --git a/wp-includes/js/imgareaselect/border-anim-v.gif b/wp-includes/js/imgareaselect/border-anim-v.gif Binary files differnew file mode 100644 index 0000000..aa31993 --- /dev/null +++ b/wp-includes/js/imgareaselect/border-anim-v.gif diff --git a/wp-includes/js/imgareaselect/imgareaselect.css b/wp-includes/js/imgareaselect/imgareaselect.css new file mode 100644 index 0000000..fd587a6 --- /dev/null +++ b/wp-includes/js/imgareaselect/imgareaselect.css @@ -0,0 +1,41 @@ +/* + * imgAreaSelect animated border style + */ + +.imgareaselect-border1 { + background: url(border-anim-v.gif) repeat-y left top; +} + +.imgareaselect-border2 { + background: url(border-anim-h.gif) repeat-x left top; +} + +.imgareaselect-border3 { + background: url(border-anim-v.gif) repeat-y right top; +} + +.imgareaselect-border4 { + background: url(border-anim-h.gif) repeat-x left bottom; +} + +.imgareaselect-border1, .imgareaselect-border2, +.imgareaselect-border3, .imgareaselect-border4 { + filter: alpha(opacity=50); + opacity: 0.5; +} + +.imgareaselect-handle { + background-color: #fff; + border: solid 1px #000; + filter: alpha(opacity=50); + opacity: 0.5; +} + +.imgareaselect-outer { + background-color: #000; + filter: alpha(opacity=50); + opacity: 0.5; +} + +.imgareaselect-selection { +} diff --git a/wp-includes/js/imgareaselect/jquery.imgareaselect.js b/wp-includes/js/imgareaselect/jquery.imgareaselect.js new file mode 100644 index 0000000..c905b01 --- /dev/null +++ b/wp-includes/js/imgareaselect/jquery.imgareaselect.js @@ -0,0 +1,1248 @@ +/* + * imgAreaSelect jQuery plugin + * version 0.9.10-wp-6.2 + * + * Copyright (c) 2008-2013 Michal Wojciechowski (odyniec.net) + * + * Dual licensed under the MIT (MIT-LICENSE.txt) + * and GPL (GPL-LICENSE.txt) licenses. + * + * https://github.com/odyniec/imgareaselect + * + */ + +(function($) { + +/* + * Math functions will be used extensively, so it's convenient to make a few + * shortcuts + */ +var abs = Math.abs, + max = Math.max, + min = Math.min, + floor = Math.floor; + +/** + * Create a new HTML div element + * + * @return A jQuery object representing the new element + */ +function div() { + return $('<div/>'); +} + +/** + * imgAreaSelect initialization + * + * @param img + * A HTML image element to attach the plugin to + * @param options + * An options object + */ +$.imgAreaSelect = function (img, options) { + var + /* jQuery object representing the image */ + $img = $(img), + + /* Has the image finished loading? */ + imgLoaded, + + /* Plugin elements */ + + /* Container box */ + $box = div(), + /* Selection area */ + $area = div(), + /* Border (four divs) */ + $border = div().add(div()).add(div()).add(div()), + /* Outer area (four divs) */ + $outer = div().add(div()).add(div()).add(div()), + /* Handles (empty by default, initialized in setOptions()) */ + $handles = $([]), + + /* + * Additional element to work around a cursor problem in Opera + * (explained later) + */ + $areaOpera, + + /* Image position (relative to viewport) */ + left, top, + + /* Image offset (as returned by .offset()) */ + imgOfs = { left: 0, top: 0 }, + + /* Image dimensions (as returned by .width() and .height()) */ + imgWidth, imgHeight, + + /* + * jQuery object representing the parent element that the plugin + * elements are appended to + */ + $parent, + + /* Parent element offset (as returned by .offset()) */ + parOfs = { left: 0, top: 0 }, + + /* Base z-index for plugin elements */ + zIndex = 0, + + /* Plugin elements position */ + position = 'absolute', + + /* X/Y coordinates of the starting point for move/resize operations */ + startX, startY, + + /* Horizontal and vertical scaling factors */ + scaleX, scaleY, + + /* Current resize mode ("nw", "se", etc.) */ + resize, + + /* Selection area constraints */ + minWidth, minHeight, maxWidth, maxHeight, + + /* Aspect ratio to maintain (floating point number) */ + aspectRatio, + + /* Are the plugin elements currently displayed? */ + shown, + + /* Current selection (relative to parent element) */ + x1, y1, x2, y2, + + /* Current selection (relative to scaled image) */ + selection = { x1: 0, y1: 0, x2: 0, y2: 0, width: 0, height: 0 }, + + /* Document element */ + docElem = document.documentElement, + + /* User agent */ + ua = navigator.userAgent, + + /* Various helper variables used throughout the code */ + $p, d, i, o, w, h, adjusted; + + /* + * Translate selection coordinates (relative to scaled image) to viewport + * coordinates (relative to parent element) + */ + + /** + * Translate selection X to viewport X + * + * @param x + * Selection X + * @return Viewport X + */ + function viewX(x) { + return x + imgOfs.left - parOfs.left; + } + + /** + * Translate selection Y to viewport Y + * + * @param y + * Selection Y + * @return Viewport Y + */ + function viewY(y) { + return y + imgOfs.top - parOfs.top; + } + + /* + * Translate viewport coordinates to selection coordinates + */ + + /** + * Translate viewport X to selection X + * + * @param x + * Viewport X + * @return Selection X + */ + function selX(x) { + return x - imgOfs.left + parOfs.left; + } + + /** + * Translate viewport Y to selection Y + * + * @param y + * Viewport Y + * @return Selection Y + */ + function selY(y) { + return y - imgOfs.top + parOfs.top; + } + + /* + * Translate event coordinates (relative to document) to viewport + * coordinates + */ + + /** + * Get event X and translate it to viewport X + * + * @param event + * The event object + * @return Viewport X + */ + function evX(event) { + return max(event.pageX || 0, touchCoords(event).x) - parOfs.left; + } + + /** + * Get event Y and translate it to viewport Y + * + * @param event + * The event object + * @return Viewport Y + */ + function evY(event) { + return max(event.pageY || 0, touchCoords(event).y) - parOfs.top; + } + + /** + * Get X and Y coordinates of a touch event + * + * @param event + * The event object + * @return Coordinates object + */ + function touchCoords(event) { + var oev = event.originalEvent || {}; + + if (oev.touches && oev.touches.length) + return { x: oev.touches[0].pageX, y: oev.touches[0].pageY }; + else + return { x: 0, y: 0 }; + } + + /** + * Get the current selection + * + * @param noScale + * If set to <code>true</code>, scaling is not applied to the + * returned selection + * @return Selection object + */ + function getSelection(noScale) { + var sx = noScale || scaleX, sy = noScale || scaleY; + + return { x1: floor(selection.x1 * sx), + y1: floor(selection.y1 * sy), + x2: floor(selection.x2 * sx), + y2: floor(selection.y2 * sy), + width: floor(selection.x2 * sx) - floor(selection.x1 * sx), + height: floor(selection.y2 * sy) - floor(selection.y1 * sy) }; + } + + /** + * Set the current selection + * + * @param x1 + * X coordinate of the upper left corner of the selection area + * @param y1 + * Y coordinate of the upper left corner of the selection area + * @param x2 + * X coordinate of the lower right corner of the selection area + * @param y2 + * Y coordinate of the lower right corner of the selection area + * @param noScale + * If set to <code>true</code>, scaling is not applied to the + * new selection + */ + function setSelection(x1, y1, x2, y2, noScale) { + var sx = noScale || scaleX, sy = noScale || scaleY; + + selection = { + x1: floor(x1 / sx || 0), + y1: floor(y1 / sy || 0), + x2: floor(x2 / sx || 0), + y2: floor(y2 / sy || 0) + }; + + selection.width = selection.x2 - selection.x1; + selection.height = selection.y2 - selection.y1; + } + + /** + * Recalculate image and parent offsets + */ + function adjust() { + /* + * Do not adjust if image has not yet loaded or if width is not a + * positive number. The latter might happen when imgAreaSelect is put + * on a parent element which is then hidden. + */ + if (!imgLoaded || !$img.width()) + return; + + /* + * Get image offset. The .offset() method returns float values, so they + * need to be rounded. + */ + imgOfs = { left: floor($img.offset().left), top: floor($img.offset().top) }; + + /* Get image dimensions */ + imgWidth = $img.innerWidth(); + imgHeight = $img.innerHeight(); + + imgOfs.top += ($img.outerHeight() - imgHeight) >> 1; + imgOfs.left += ($img.outerWidth() - imgWidth) >> 1; + + /* Set minimum and maximum selection area dimensions */ + minWidth = floor(options.minWidth / scaleX) || 0; + minHeight = floor(options.minHeight / scaleY) || 0; + maxWidth = floor(min(options.maxWidth / scaleX || 1<<24, imgWidth)); + maxHeight = floor(min(options.maxHeight / scaleY || 1<<24, imgHeight)); + + /* + * Workaround for jQuery 1.3.2 incorrect offset calculation, originally + * observed in Safari 3. Firefox 2 is also affected. + */ + if ($().jquery == '1.3.2' && position == 'fixed' && + !docElem['getBoundingClientRect']) + { + imgOfs.top += max(document.body.scrollTop, docElem.scrollTop); + imgOfs.left += max(document.body.scrollLeft, docElem.scrollLeft); + } + + /* Determine parent element offset */ + parOfs = /absolute|relative/.test($parent.css('position')) ? + { left: floor($parent.offset().left) - $parent.scrollLeft(), + top: floor($parent.offset().top) - $parent.scrollTop() } : + position == 'fixed' ? + { left: $(document).scrollLeft(), top: $(document).scrollTop() } : + { left: 0, top: 0 }; + + left = viewX(0); + top = viewY(0); + + /* + * Check if selection area is within image boundaries, adjust if + * necessary + */ + if (selection.x2 > imgWidth || selection.y2 > imgHeight) + doResize(); + } + + /** + * Update plugin elements + * + * @param resetKeyPress + * If set to <code>false</code>, this instance's keypress + * event handler is not activated + */ + function update(resetKeyPress) { + /* If plugin elements are hidden, do nothing */ + if (!shown) return; + + /* + * Set the position and size of the container box and the selection area + * inside it + */ + $box.css({ left: viewX(selection.x1), top: viewY(selection.y1) }) + .add($area).width(w = selection.width).height(h = selection.height); + + /* + * Reset the position of selection area, borders, and handles (IE6/IE7 + * position them incorrectly if we don't do this) + */ + $area.add($border).add($handles).css({ left: 0, top: 0 }); + + /* Set border dimensions */ + $border + .width(max(w - $border.outerWidth() + $border.innerWidth(), 0)) + .height(max(h - $border.outerHeight() + $border.innerHeight(), 0)); + + /* Arrange the outer area elements */ + $($outer[0]).css({ left: left, top: top, + width: selection.x1, height: imgHeight }); + $($outer[1]).css({ left: left + selection.x1, top: top, + width: w, height: selection.y1 }); + $($outer[2]).css({ left: left + selection.x2, top: top, + width: imgWidth - selection.x2, height: imgHeight }); + $($outer[3]).css({ left: left + selection.x1, top: top + selection.y2, + width: w, height: imgHeight - selection.y2 }); + + w -= $handles.outerWidth(); + h -= $handles.outerHeight(); + + /* Arrange handles */ + switch ($handles.length) { + case 8: + $($handles[4]).css({ left: w >> 1 }); + $($handles[5]).css({ left: w, top: h >> 1 }); + $($handles[6]).css({ left: w >> 1, top: h }); + $($handles[7]).css({ top: h >> 1 }); + case 4: + $handles.slice(1,3).css({ left: w }); + $handles.slice(2,4).css({ top: h }); + } + + if (resetKeyPress !== false) { + /* + * Need to reset the document keypress event handler -- unbind the + * current handler + */ + if ($.imgAreaSelect.onKeyPress != docKeyPress) + $(document).off($.imgAreaSelect.keyPress, + $.imgAreaSelect.onKeyPress); + + if (options.keys) + /* + * Set the document keypress event handler to this instance's + * docKeyPress() function + */ + $(document).on( $.imgAreaSelect.keyPress, function() { + $.imgAreaSelect.onKeyPress = docKeyPress; + }); + } + + /* + * Internet Explorer displays 1px-wide dashed borders incorrectly by + * filling the spaces between dashes with white. Toggling the margin + * property between 0 and "auto" fixes this in IE6 and IE7 (IE8 is still + * broken). This workaround is not perfect, as it requires setTimeout() + * and thus causes the border to flicker a bit, but I haven't found a + * better solution. + * + * Note: This only happens with CSS borders, set with the borderWidth, + * borderOpacity, borderColor1, and borderColor2 options (which are now + * deprecated). Borders created with GIF background images are fine. + */ + if (msie && $border.outerWidth() - $border.innerWidth() == 2) { + $border.css('margin', 0); + setTimeout(function () { $border.css('margin', 'auto'); }, 0); + } + } + + /** + * Do the complete update sequence: recalculate offsets, update the + * elements, and set the correct values of x1, y1, x2, and y2. + * + * @param resetKeyPress + * If set to <code>false</code>, this instance's keypress + * event handler is not activated + */ + function doUpdate(resetKeyPress) { + adjust(); + update(resetKeyPress); + updateSelectionRelativeToParentElement(); + } + + /** + * Set the correct values of x1, y1, x2, and y2. + */ + function updateSelectionRelativeToParentElement() { + x1 = viewX(selection.x1); y1 = viewY(selection.y1); + x2 = viewX(selection.x2); y2 = viewY(selection.y2); + } + + /** + * Hide or fade out an element (or multiple elements) + * + * @param $elem + * A jQuery object containing the element(s) to hide/fade out + * @param fn + * Callback function to be called when fadeOut() completes + */ + function hide($elem, fn) { + options.fadeSpeed ? $elem.fadeOut(options.fadeSpeed, fn) : $elem.hide(); + } + + /** + * Selection area mousemove event handler + * + * @param event + * The event object + */ + function areaMouseMove(event) { + var x = selX(evX(event)) - selection.x1, + y = selY(evY(event)) - selection.y1; + + if (!adjusted) { + adjust(); + adjusted = true; + + $box.one('mouseout', function () { adjusted = false; }); + } + + /* Clear the resize mode */ + resize = ''; + + if (options.resizable) { + /* + * Check if the mouse pointer is over the resize margin area and set + * the resize mode accordingly + */ + if (y <= options.resizeMargin) + resize = 'n'; + else if (y >= selection.height - options.resizeMargin) + resize = 's'; + if (x <= options.resizeMargin) + resize += 'w'; + else if (x >= selection.width - options.resizeMargin) + resize += 'e'; + } + + $box.css('cursor', resize ? resize + '-resize' : + options.movable ? 'move' : ''); + if ($areaOpera) + $areaOpera.toggle(); + } + + /** + * Document mouseup event handler + * + * @param event + * The event object + */ + function docMouseUp(event) { + /* Set back the default cursor */ + $('body').css('cursor', ''); + /* + * If autoHide is enabled, or if the selection has zero width/height, + * hide the selection and the outer area + */ + if (options.autoHide || selection.width * selection.height == 0) + hide($box.add($outer), function () { $(this).hide(); }); + + $(document).off('mousemove touchmove', selectingMouseMove); + $box.on('mousemove touchmove', areaMouseMove); + + options.onSelectEnd(img, getSelection()); + } + + /** + * Selection area mousedown event handler + * + * @param event + * The event object + * @return false + */ + function areaMouseDown(event) { + if (event.type == 'mousedown' && event.which != 1) return false; + + /* + * With mobile browsers, there is no "moving the pointer over" action, + * so we need to simulate one mousemove event happening prior to + * mousedown/touchstart. + */ + areaMouseMove(event); + + adjust(); + + if (resize) { + /* Resize mode is in effect */ + $('body').css('cursor', resize + '-resize'); + + x1 = viewX(selection[/w/.test(resize) ? 'x2' : 'x1']); + y1 = viewY(selection[/n/.test(resize) ? 'y2' : 'y1']); + + $(document).on('mousemove touchmove', selectingMouseMove) + .one('mouseup touchend', docMouseUp); + $box.off('mousemove touchmove', areaMouseMove); + } + else if (options.movable) { + startX = left + selection.x1 - evX(event); + startY = top + selection.y1 - evY(event); + + $box.off('mousemove touchmove', areaMouseMove); + + $(document).on('mousemove touchmove', movingMouseMove) + .one('mouseup touchend', function () { + options.onSelectEnd(img, getSelection()); + + $(document).off('mousemove touchmove', movingMouseMove); + $box.on('mousemove touchmove', areaMouseMove); + }); + } + else + $img.mousedown(event); + + return false; + } + + /** + * Adjust the x2/y2 coordinates to maintain aspect ratio (if defined) + * + * @param xFirst + * If set to <code>true</code>, calculate x2 first. Otherwise, + * calculate y2 first. + */ + function fixAspectRatio(xFirst) { + if (aspectRatio) + if (xFirst) { + x2 = max(left, min(left + imgWidth, + x1 + abs(y2 - y1) * aspectRatio * (x2 > x1 || -1))); + y2 = floor(max(top, min(top + imgHeight, + y1 + abs(x2 - x1) / aspectRatio * (y2 > y1 || -1)))); + x2 = floor(x2); + } + else { + y2 = max(top, min(top + imgHeight, + y1 + abs(x2 - x1) / aspectRatio * (y2 > y1 || -1))); + x2 = floor(max(left, min(left + imgWidth, + x1 + abs(y2 - y1) * aspectRatio * (x2 > x1 || -1)))); + y2 = floor(y2); + } + } + + /** + * Resize the selection area respecting the minimum/maximum dimensions and + * aspect ratio + */ + function doResize() { + /* + * Make sure x1, x2, y1, y2 are initialized to avoid the following calculation + * getting incorrect results. + */ + if ( x1 == null || x2 == null || y1 == null || y2 == null ) { + updateSelectionRelativeToParentElement(); + } + + /* + * Make sure the top left corner of the selection area stays within + * image boundaries (it might not if the image source was dynamically + * changed). + */ + x1 = min(x1, left + imgWidth); + y1 = min(y1, top + imgHeight); + + if (abs(x2 - x1) < minWidth) { + /* Selection width is smaller than minWidth */ + x2 = x1 - minWidth * (x2 < x1 || -1); + + if (x2 < left) + x1 = left + minWidth; + else if (x2 > left + imgWidth) + x1 = left + imgWidth - minWidth; + } + + if (abs(y2 - y1) < minHeight) { + /* Selection height is smaller than minHeight */ + y2 = y1 - minHeight * (y2 < y1 || -1); + + if (y2 < top) + y1 = top + minHeight; + else if (y2 > top + imgHeight) + y1 = top + imgHeight - minHeight; + } + + x2 = max(left, min(x2, left + imgWidth)); + y2 = max(top, min(y2, top + imgHeight)); + + fixAspectRatio(abs(x2 - x1) < abs(y2 - y1) * aspectRatio); + + if (abs(x2 - x1) > maxWidth) { + /* Selection width is greater than maxWidth */ + x2 = x1 - maxWidth * (x2 < x1 || -1); + fixAspectRatio(); + } + + if (abs(y2 - y1) > maxHeight) { + /* Selection height is greater than maxHeight */ + y2 = y1 - maxHeight * (y2 < y1 || -1); + fixAspectRatio(true); + } + + selection = { x1: selX(min(x1, x2)), x2: selX(max(x1, x2)), + y1: selY(min(y1, y2)), y2: selY(max(y1, y2)), + width: abs(x2 - x1), height: abs(y2 - y1) }; + + update(); + + options.onSelectChange(img, getSelection()); + } + + /** + * Mousemove event handler triggered when the user is selecting an area + * + * @param event + * The event object + * @return false + */ + function selectingMouseMove(event) { + x2 = /w|e|^$/.test(resize) || aspectRatio ? evX(event) : viewX(selection.x2); + y2 = /n|s|^$/.test(resize) || aspectRatio ? evY(event) : viewY(selection.y2); + + doResize(); + + return false; + } + + /** + * Move the selection area + * + * @param newX1 + * New viewport X1 + * @param newY1 + * New viewport Y1 + */ + function doMove(newX1, newY1) { + x2 = (x1 = newX1) + selection.width; + y2 = (y1 = newY1) + selection.height; + + $.extend(selection, { x1: selX(x1), y1: selY(y1), x2: selX(x2), + y2: selY(y2) }); + + update(); + + options.onSelectChange(img, getSelection()); + } + + /** + * Mousemove event handler triggered when the selection area is being moved + * + * @param event + * The event object + * @return false + */ + function movingMouseMove(event) { + x1 = max(left, min(startX + evX(event), left + imgWidth - selection.width)); + y1 = max(top, min(startY + evY(event), top + imgHeight - selection.height)); + + doMove(x1, y1); + + event.preventDefault(); + return false; + } + + /** + * Start selection + */ + function startSelection() { + $(document).off('mousemove touchmove', startSelection); + adjust(); + + x2 = x1; + y2 = y1; + doResize(); + + resize = ''; + + if (!$outer.is(':visible')) + /* Show the plugin elements */ + $box.add($outer).hide().fadeIn(options.fadeSpeed||0); + + shown = true; + + $(document).off('mouseup touchend', cancelSelection) + .on('mousemove touchmove', selectingMouseMove) + .one('mouseup touchend', docMouseUp); + $box.off('mousemove touchmove', areaMouseMove); + + options.onSelectStart(img, getSelection()); + } + + /** + * Cancel selection + */ + function cancelSelection() { + $(document).off('mousemove touchmove', startSelection) + .off('mouseup touchend', cancelSelection); + hide($box.add($outer)); + + setSelection(selX(x1), selY(y1), selX(x1), selY(y1)); + + /* If this is an API call, callback functions should not be triggered */ + if (!(this instanceof $.imgAreaSelect)) { + options.onSelectChange(img, getSelection()); + options.onSelectEnd(img, getSelection()); + } + } + + /** + * Image mousedown event handler + * + * @param event + * The event object + * @return false + */ + function imgMouseDown(event) { + /* Ignore the event if animation is in progress */ + if (event.which > 1 || $outer.is(':animated')) return false; + + adjust(); + startX = x1 = evX(event); + startY = y1 = evY(event); + + /* Selection will start when the mouse is moved */ + $(document).on({ 'mousemove touchmove': startSelection, + 'mouseup touchend': cancelSelection }); + + return false; + } + + /** + * Window resize event handler + */ + function windowResize() { + doUpdate(false); + } + + /** + * Image load event handler. This is the final part of the initialization + * process. + */ + function imgLoad() { + imgLoaded = true; + + /* Set options */ + setOptions(options = $.extend({ + classPrefix: 'imgareaselect', + movable: true, + parent: 'body', + resizable: true, + resizeMargin: 10, + onInit: function () {}, + onSelectStart: function () {}, + onSelectChange: function () {}, + onSelectEnd: function () {} + }, options)); + + $box.add($outer).css({ visibility: '' }); + + if (options.show) { + shown = true; + adjust(); + update(); + $box.add($outer).hide().fadeIn(options.fadeSpeed||0); + } + + /* + * Call the onInit callback. The setTimeout() call is used to ensure + * that the plugin has been fully initialized and the object instance is + * available (so that it can be obtained in the callback). + */ + setTimeout(function () { options.onInit(img, getSelection()); }, 0); + } + + /** + * Document keypress event handler + * + * @param event + * The event object + * @return false + */ + var docKeyPress = function(event) { + var k = options.keys, d, t, key = event.keyCode; + + d = !isNaN(k.alt) && (event.altKey || event.originalEvent.altKey) ? k.alt : + !isNaN(k.ctrl) && event.ctrlKey ? k.ctrl : + !isNaN(k.shift) && event.shiftKey ? k.shift : + !isNaN(k.arrows) ? k.arrows : 10; + + if (k.arrows == 'resize' || (k.shift == 'resize' && event.shiftKey) || + (k.ctrl == 'resize' && event.ctrlKey) || + (k.alt == 'resize' && (event.altKey || event.originalEvent.altKey))) + { + /* Resize selection */ + + switch (key) { + case 37: + /* Left */ + d = -d; + case 39: + /* Right */ + t = max(x1, x2); + x1 = min(x1, x2); + x2 = max(t + d, x1); + fixAspectRatio(); + break; + case 38: + /* Up */ + d = -d; + case 40: + /* Down */ + t = max(y1, y2); + y1 = min(y1, y2); + y2 = max(t + d, y1); + fixAspectRatio(true); + break; + default: + return; + } + + doResize(); + } + else { + /* Move selection */ + + x1 = min(x1, x2); + y1 = min(y1, y2); + + switch (key) { + case 37: + /* Left */ + doMove(max(x1 - d, left), y1); + break; + case 38: + /* Up */ + doMove(x1, max(y1 - d, top)); + break; + case 39: + /* Right */ + doMove(x1 + min(d, imgWidth - selX(x2)), y1); + break; + case 40: + /* Down */ + doMove(x1, y1 + min(d, imgHeight - selY(y2))); + break; + default: + return; + } + } + + return false; + }; + + /** + * Apply style options to plugin element (or multiple elements) + * + * @param $elem + * A jQuery object representing the element(s) to style + * @param props + * An object that maps option names to corresponding CSS + * properties + */ + function styleOptions($elem, props) { + for (var option in props) + if (options[option] !== undefined) + $elem.css(props[option], options[option]); + } + + /** + * Set plugin options + * + * @param newOptions + * The new options object + */ + function setOptions(newOptions) { + if (newOptions.parent) + ($parent = $(newOptions.parent)).append($box.add($outer)); + + /* Merge the new options with the existing ones */ + $.extend(options, newOptions); + + adjust(); + + if (newOptions.handles != null) { + /* Recreate selection area handles */ + $handles.remove(); + $handles = $([]); + + i = newOptions.handles ? newOptions.handles == 'corners' ? 4 : 8 : 0; + + while (i--) + $handles = $handles.add(div()); + + /* Add a class to handles and set the CSS properties */ + $handles.addClass(options.classPrefix + '-handle').css({ + position: 'absolute', + /* + * The font-size property needs to be set to zero, otherwise + * Internet Explorer makes the handles too large + */ + fontSize: '0', + zIndex: zIndex + 1 || 1 + }); + + /* + * If handle width/height has not been set with CSS rules, set the + * default 5px + */ + if (!parseInt($handles.css('width')) >= 0) + $handles.width(10).height(10); + + /* + * If the borderWidth option is in use, add a solid border to + * handles + */ + if (o = options.borderWidth) + $handles.css({ borderWidth: o, borderStyle: 'solid' }); + + /* Apply other style options */ + styleOptions($handles, { borderColor1: 'border-color', + borderColor2: 'background-color', + borderOpacity: 'opacity' }); + } + + /* Calculate scale factors */ + scaleX = options.imageWidth / imgWidth || 1; + scaleY = options.imageHeight / imgHeight || 1; + + /* Set selection */ + if (newOptions.x1 != null) { + setSelection(newOptions.x1, newOptions.y1, newOptions.x2, + newOptions.y2); + newOptions.show = !newOptions.hide; + } + + if (newOptions.keys) + /* Enable keyboard support */ + options.keys = $.extend({ shift: 1, ctrl: 'resize' }, + newOptions.keys); + + /* Add classes to plugin elements */ + $outer.addClass(options.classPrefix + '-outer'); + $area.addClass(options.classPrefix + '-selection'); + for (i = 0; i++ < 4;) + $($border[i-1]).addClass(options.classPrefix + '-border' + i); + + /* Apply style options */ + styleOptions($area, { selectionColor: 'background-color', + selectionOpacity: 'opacity' }); + styleOptions($border, { borderOpacity: 'opacity', + borderWidth: 'border-width' }); + styleOptions($outer, { outerColor: 'background-color', + outerOpacity: 'opacity' }); + if (o = options.borderColor1) + $($border[0]).css({ borderStyle: 'solid', borderColor: o }); + if (o = options.borderColor2) + $($border[1]).css({ borderStyle: 'dashed', borderColor: o }); + + /* Append all the selection area elements to the container box */ + $box.append($area.add($border).add($areaOpera)).append($handles); + + if (msie) { + if (o = ($outer.css('filter')||'').match(/opacity=(\d+)/)) + $outer.css('opacity', o[1]/100); + if (o = ($border.css('filter')||'').match(/opacity=(\d+)/)) + $border.css('opacity', o[1]/100); + } + + if (newOptions.hide) + hide($box.add($outer)); + else if (newOptions.show && imgLoaded) { + shown = true; + $box.add($outer).fadeIn(options.fadeSpeed||0); + doUpdate(); + } + + /* Calculate the aspect ratio factor */ + aspectRatio = (d = (options.aspectRatio || '').split(/:/))[0] / d[1]; + + $img.add($outer).off('mousedown', imgMouseDown); + + if (options.disable || options.enable === false) { + /* Disable the plugin */ + $box.off({ 'mousemove touchmove': areaMouseMove, + 'mousedown touchstart': areaMouseDown }); + $(window).off('resize', windowResize); + } + else { + if (options.enable || options.disable === false) { + /* Enable the plugin */ + if (options.resizable || options.movable) + $box.on({ 'mousemove touchmove': areaMouseMove, + 'mousedown touchstart': areaMouseDown }); + + $(window).on( 'resize', windowResize); + } + + if (!options.persistent) + $img.add($outer).on('mousedown touchstart', imgMouseDown); + } + + options.enable = options.disable = undefined; + } + + /** + * Remove plugin completely + */ + this.remove = function () { + /* + * Call setOptions with { disable: true } to unbind the event handlers + */ + setOptions({ disable: true }); + $box.add($outer).remove(); + }; + + /* + * Public API + */ + + /** + * Get current options + * + * @return An object containing the set of options currently in use + */ + this.getOptions = function () { return options; }; + + /** + * Set plugin options + * + * @param newOptions + * The new options object + */ + this.setOptions = setOptions; + + /** + * Get the current selection + * + * @param noScale + * If set to <code>true</code>, scaling is not applied to the + * returned selection + * @return Selection object + */ + this.getSelection = getSelection; + + /** + * Set the current selection + * + * @param x1 + * X coordinate of the upper left corner of the selection area + * @param y1 + * Y coordinate of the upper left corner of the selection area + * @param x2 + * X coordinate of the lower right corner of the selection area + * @param y2 + * Y coordinate of the lower right corner of the selection area + * @param noScale + * If set to <code>true</code>, scaling is not applied to the + * new selection + */ + this.setSelection = setSelection; + + /** + * Cancel selection + */ + this.cancelSelection = cancelSelection; + + /** + * Update plugin elements + * + * @param resetKeyPress + * If set to <code>false</code>, this instance's keypress + * event handler is not activated + */ + this.update = doUpdate; + + /* Do the dreaded browser detection */ + var msie = (/msie ([\w.]+)/i.exec(ua)||[])[1], + opera = /opera/i.test(ua), + safari = /webkit/i.test(ua) && !/chrome/i.test(ua); + + /* + * Traverse the image's parent elements (up to <body>) and find the + * highest z-index + */ + $p = $img; + + while ($p.length) { + zIndex = max(zIndex, + !isNaN($p.css('z-index')) ? $p.css('z-index') : zIndex); + /* Also check if any of the ancestor elements has fixed position */ + if ($p.css('position') == 'fixed') + position = 'fixed'; + + $p = $p.parent(':not(body)'); + } + + /* + * If z-index is given as an option, it overrides the one found by the + * above loop + */ + zIndex = options.zIndex || zIndex; + + if (msie) + $img.attr('unselectable', 'on'); + + /* + * In MSIE and WebKit, we need to use the keydown event instead of keypress + */ + $.imgAreaSelect.keyPress = msie || safari ? 'keydown' : 'keypress'; + + /* + * There is a bug affecting the CSS cursor property in Opera (observed in + * versions up to 10.00) that prevents the cursor from being updated unless + * the mouse leaves and enters the element again. To trigger the mouseover + * event, we're adding an additional div to $box and we're going to toggle + * it when mouse moves inside the selection area. + */ + if (opera) + $areaOpera = div().css({ width: '100%', height: '100%', + position: 'absolute', zIndex: zIndex + 2 || 2 }); + + /* + * We initially set visibility to "hidden" as a workaround for a weird + * behaviour observed in Google Chrome 1.0.154.53 (on Windows XP). Normally + * we would just set display to "none", but, for some reason, if we do so + * then Chrome refuses to later display the element with .show() or + * .fadeIn(). + */ + $box.add($outer).css({ visibility: 'hidden', position: position, + overflow: 'hidden', zIndex: zIndex || '0' }); + $box.css({ zIndex: zIndex + 2 || 2 }); + $area.add($border).css({ position: 'absolute', fontSize: '0' }); + + /* + * If the image has been fully loaded, or if it is not really an image (eg. + * a div), call imgLoad() immediately; otherwise, bind it to be called once + * on image load event. + */ + img.complete || img.readyState == 'complete' || !$img.is('img') ? + imgLoad() : $img.one('load', imgLoad); + + /* + * MSIE 9.0 doesn't always fire the image load event -- resetting the src + * attribute seems to trigger it. The check is for version 7 and above to + * accommodate for MSIE 9 running in compatibility mode. + */ + if (!imgLoaded && msie && msie >= 7) + img.src = img.src; +}; + +/** + * Invoke imgAreaSelect on a jQuery object containing the image(s) + * + * @param options + * Options object + * @return The jQuery object or a reference to imgAreaSelect instance (if the + * <code>instance</code> option was specified) + */ +$.fn.imgAreaSelect = function (options) { + options = options || {}; + + this.each(function () { + /* Is there already an imgAreaSelect instance bound to this element? */ + if ($(this).data('imgAreaSelect')) { + /* Yes there is -- is it supposed to be removed? */ + if (options.remove) { + /* Remove the plugin */ + $(this).data('imgAreaSelect').remove(); + $(this).removeData('imgAreaSelect'); + } + else + /* Reset options */ + $(this).data('imgAreaSelect').setOptions(options); + } + else if (!options.remove) { + /* No exising instance -- create a new one */ + + /* + * If 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