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Prepare the MOZCENTRAL viewer for receiving zoom events from the browser UI (bug 786674, bug 1177385)

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This lays the necessary foundation for handling zoom events originating within the browser itself, rather than in the viewer. Please note that this will also require a follow-up patch to `mozilla-central`, such that the viewer is actually notified when zooming occurs.
This commit is contained in:
Jonas Jenwald 2019-03-19 10:45:27 +01:00
parent 844aecf9e3
commit 2e044bf646
2 changed files with 42 additions and 4 deletions
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25
web/firefoxcom.js
View file

@ -171,7 +171,7 @@ class MozL10n {
'findentirewordchange',
'findbarclose',
];
let handleEvent = function({ type, detail, }) {
const handleEvent = function({ type, detail, }) {
if (!PDFViewerApplication.initialized) {
return;
}
@ -193,7 +193,28 @@ class MozL10n {
});
};
for (let event of events) {
for (const event of events) {
window.addEventListener(event, handleEvent);
}
})();
(function listenZoomEvents() {
const events = [
'zoomin',
'zoomout',
'zoomreset',
];
const handleEvent = function({ type, detail, }) {
if (!PDFViewerApplication.initialized) {
return;
}
PDFViewerApplication.eventBus.dispatch(type, {
source: window,
ignoreDuplicate: (type === 'zoomreset' ? true : undefined),
});
};
for (const event of events) {
window.addEventListener(event, handleEvent);
}
})();