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[GeckoView] Show the download button by default and add a pref to disable it (bug 1827963)

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For the moment there is no real consensus on how we should download a pdf on Android.
Hence we keep this solution for the moment but behind a pref (which will be true on
nightly only).
This commit is contained in:
Calixte Denizet 2023-04-13 19:15:08 +02:00
parent 7571842d84
commit 7f0d45ce47
4 changed files with 61 additions and 23 deletions
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45
web/toolbar-geckoview.js
View file

@ -20,16 +20,24 @@
* @property {HTMLButtonElement} download - Button to download the document.
*/
const TIME_BEFORE_SHOWING_TOOLBAR = 200;
class Toolbar {
#buttons;
#checkForScrollEndBound = this.#checkForScrollEnd.bind(this);
#eventBus;
#toolbar;
#hideBound = this.#hide.bind(this);
#mainContainer;
#toggleBound = this.toggle.bind(this);
#scrollEndTimeoutId = null;
#showBound = this.#show.bind(this);
#toolbar;
/**
* @param {ToolbarOptions} options
@ -44,6 +52,7 @@ class Toolbar {
// Bind the event listeners for click and various other actions.
this.#bindListeners(options);
this.#checkForScrollEnd();
}
setPageNumber(pageNumber, pageLabel) {}
@ -67,12 +76,34 @@ class Toolbar {
updateLoadingIndicatorState(loading = false) {}
toggle() {
if (this.#toolbar.classList.toggle("show")) {
this.#mainContainer.addEventListener("scroll", this.#toggleBound);
} else {
this.#mainContainer.removeEventListener("scroll", this.#toggleBound);
#checkForScrollEnd() {
if (this.#scrollEndTimeoutId !== null) {
clearTimeout(this.#scrollEndTimeoutId);
}
this.#scrollEndTimeoutId = setTimeout(
this.#showBound,
TIME_BEFORE_SHOWING_TOOLBAR
);
}
#show() {
this.#toolbar.classList.toggle("show", true);
this.#mainContainer.removeEventListener(
"scroll",
this.#checkForScrollEndBound
);
this.#scrollEndTimeoutId = null;
this.#mainContainer.addEventListener("scroll", this.#hideBound);
}
#hide() {
this.#toolbar.classList.toggle("show", false);
this.#mainContainer.removeEventListener("scroll", this.#hideBound);
this.#mainContainer.addEventListener(
"scroll",
this.#checkForScrollEndBound
);
this.#checkForScrollEnd();
}
}