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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /image/test/unit/image_load_helpers.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | image/test/unit/image_load_helpers.js | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/image/test/unit/image_load_helpers.js b/image/test/unit/image_load_helpers.js new file mode 100644 index 0000000000..6d1e605bf5 --- /dev/null +++ b/image/test/unit/image_load_helpers.js @@ -0,0 +1,124 @@ +/* + * Helper structures to track callbacks from image and channel loads. + */ + +// START_REQUEST and STOP_REQUEST are used by ChannelListener, and +// stored in ChannelListener.requestStatus. +const START_REQUEST = 0x01; +const STOP_REQUEST = 0x02; +const DATA_AVAILABLE = 0x04; + +// One bit per callback that imageListener below implements. Stored in +// ImageListener.state. +const SIZE_AVAILABLE = 0x01; +const FRAME_UPDATE = 0x02; +const FRAME_COMPLETE = 0x04; +const LOAD_COMPLETE = 0x08; +const DECODE_COMPLETE = 0x10; + +// Safebrowsing requires that the profile dir is set. +do_get_profile(); + +// An implementation of imgIScriptedNotificationObserver with the ability to +// call specified functions on onStartRequest and onStopRequest. +function ImageListener(start_callback, stop_callback) { + this.sizeAvailable = function onSizeAvailable(aRequest) { + Assert.ok(!this.synchronous); + + this.state |= SIZE_AVAILABLE; + + if (this.start_callback) { + this.start_callback(this, aRequest); + } + }; + this.frameComplete = function onFrameComplete(aRequest) { + Assert.ok(!this.synchronous); + + this.state |= FRAME_COMPLETE; + }; + this.decodeComplete = function onDecodeComplete(aRequest) { + Assert.ok(!this.synchronous); + + this.state |= DECODE_COMPLETE; + }; + this.loadComplete = function onLoadcomplete(aRequest) { + Assert.ok(!this.synchronous); + + this.state |= LOAD_COMPLETE; + + if (this.stop_callback) { + this.stop_callback(this, aRequest); + } + }; + this.frameUpdate = function onFrameUpdate(aRequest) {}; + this.isAnimated = function onIsAnimated() {}; + + // Initialize the synchronous flag to true to start. This must be set to + // false before exiting to the event loop! + this.synchronous = true; + + // A function to call when onStartRequest is called. + this.start_callback = start_callback; + + // A function to call when onStopRequest is called. + this.stop_callback = stop_callback; + + // The image load/decode state. + // A bitfield that tracks which callbacks have been called. Takes the bits + // defined above. + this.state = 0; +} + +function NS_FAILED(val) { + return !!(val & 0x80000000); +} + +function ChannelListener() { + this.onStartRequest = function onStartRequest(aRequest) { + if (this.outputListener) { + this.outputListener.onStartRequest(aRequest); + } + + this.requestStatus |= START_REQUEST; + }; + + this.onDataAvailable = function onDataAvailable( + aRequest, + aInputStream, + aOffset, + aCount + ) { + if (this.outputListener) { + this.outputListener.onDataAvailable( + aRequest, + aInputStream, + aOffset, + aCount + ); + } + + this.requestStatus |= DATA_AVAILABLE; + }; + + this.onStopRequest = function onStopRequest(aRequest, aStatusCode) { + if (this.outputListener) { + this.outputListener.onStopRequest(aRequest, aStatusCode); + } + + // If we failed (or were canceled - failure is implied if canceled), + // there's no use tracking our state, since it's meaningless. + if (NS_FAILED(aStatusCode)) { + this.requestStatus = 0; + } else { + this.requestStatus |= STOP_REQUEST; + } + }; + + // A listener to pass the notifications we get to. + this.outputListener = null; + + // The request's status. A bitfield that holds one or both of START_REQUEST + // and STOP_REQUEST, according to which callbacks have been called on the + // associated request. + this.requestStatus = 0; +} |