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// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const BUNDLE_URL = "chrome://global/locale/viewSource.properties";
/**
* ViewSourcePageParent manages the view source <browser> from the chrome side.
*/
export class ViewSourcePageParent extends JSWindowActorParent {
constructor() {
super();
/**
* Holds the value of the last line found via the "Go to line"
* command, to pre-populate the prompt the next time it is
* opened.
*/
this.lastLineFound = null;
}
/**
* Anything added to the messages array will get handled here, and should
* get dispatched to a specific function for the message name.
*/
receiveMessage(message) {
let data = message.data;
switch (message.name) {
case "ViewSource:PromptAndGoToLine":
this.promptAndGoToLine();
break;
case "ViewSource:GoToLine:Success":
this.onGoToLineSuccess(data.lineNumber);
break;
case "ViewSource:GoToLine:Failed":
this.onGoToLineFailed();
break;
case "ViewSource:StoreWrapping":
this.storeWrapping(data.state);
break;
case "ViewSource:StoreSyntaxHighlighting":
this.storeSyntaxHighlighting(data.state);
break;
}
}
/**
* A getter for the view source string bundle.
*/
get bundle() {
if (this._bundle) {
return this._bundle;
}
return (this._bundle = Services.strings.createBundle(BUNDLE_URL));
}
/**
* Opens the "Go to line" prompt for a user to hop to a particular line
* of the source code they're viewing. This will keep prompting until the
* user either cancels out of the prompt, or enters a valid line number.
*/
promptAndGoToLine() {
let input = { value: this.lastLineFound };
let window = Services.wm.getMostRecentWindow(null);
let ok = Services.prompt.prompt(
window,
this.bundle.GetStringFromName("goToLineTitle"),
this.bundle.GetStringFromName("goToLineText"),
input,
null,
{ value: 0 }
);
if (!ok) {
return;
}
let line = parseInt(input.value, 10);
if (!(line > 0)) {
Services.prompt.alert(
window,
this.bundle.GetStringFromName("invalidInputTitle"),
this.bundle.GetStringFromName("invalidInputText")
);
this.promptAndGoToLine();
} else {
this.goToLine(line);
}
}
/**
* Go to a particular line of the source code. This act is asynchronous.
*
* @param lineNumber
* The line number to try to go to to.
*/
goToLine(lineNumber) {
this.sendAsyncMessage("ViewSource:GoToLine", { lineNumber });
}
/**
* Called when the frame script reports that a line was successfully gotten
* to.
*
* @param lineNumber
* The line number that we successfully got to.
*/
onGoToLineSuccess(lineNumber) {
// We'll pre-populate the "Go to line" prompt with this value the next
// time it comes up.
this.lastLineFound = lineNumber;
}
/**
* Called when the child reports that we failed to go to a particular
* line. This informs the user that their selection was likely out of range,
* and then reprompts the user to try again.
*/
onGoToLineFailed() {
let window = Services.wm.getMostRecentWindow(null);
Services.prompt.alert(
window,
this.bundle.GetStringFromName("outOfRangeTitle"),
this.bundle.GetStringFromName("outOfRangeText")
);
this.promptAndGoToLine();
}
/**
* @return {boolean} the wrapping state
*/
queryIsWrapping() {
return this.sendQuery("ViewSource:IsWrapping");
}
/**
* @return {boolean} the syntax highlighting state
*/
queryIsSyntaxHighlighting() {
return this.sendQuery("ViewSource:IsSyntaxHighlighting");
}
/**
* Update the wrapping pref based on the child's current state.
* @param state
* Whether wrapping is currently enabled in the child.
*/
storeWrapping(state) {
Services.prefs.setBoolPref("view_source.wrap_long_lines", state);
}
/**
* Update the syntax highlighting pref based on the child's current state.
* @param state
* Whether syntax highlighting is currently enabled in the child.
*/
storeSyntaxHighlighting(state) {
Services.prefs.setBoolPref("view_source.syntax_highlight", state);
}
}
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