mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
342 lines
11 KiB
JavaScript
342 lines
11 KiB
JavaScript
/* 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/. */
|
|
|
|
/*
|
|
* ContentAreaObserver manages tracking the viewable area within the browser.
|
|
* It also handles certain tasks like positioning of input elements within
|
|
* content when the viewable area changes.
|
|
*
|
|
* ContentAreaObserver creates styles that content can apply and also fires
|
|
* events when things change. The 'width' and 'height' properties of the
|
|
* styles are updated whenever various parts of the UI are resized.
|
|
*
|
|
* styles: window-width, window-height
|
|
* events: SizeChanged
|
|
*
|
|
* The innerWidth/innerHeight of the main chrome window.
|
|
*
|
|
* styles: content-width, content-height
|
|
* events: ContentSizeChanged
|
|
*
|
|
* The area of the window dedicated to web content; this is equal to the
|
|
* innerWidth/Height minus any toolbars or similar chrome.
|
|
*
|
|
* styles: viewable-width, viewable-height
|
|
* events: ViewableSizeChanged
|
|
*
|
|
* The portion of the content area that is not obscured by the on-screen
|
|
* keyboard.
|
|
*
|
|
* ContentAreaObserver also manages soft keyboard related events. Events
|
|
* fired include:
|
|
*
|
|
* KeyboardChanged - fired after the visibility of the soft keyboard changes
|
|
* and after any view related changes are made to accomidate view dim
|
|
* changes as a result.
|
|
*
|
|
* MozDeckOffsetChanging, MozDeckOffsetChanged - interim events fired when
|
|
* the browser deck is being repositioned to move focused elements out of
|
|
* the way of the keyboard.
|
|
*/
|
|
|
|
var ContentAreaObserver = {
|
|
styles: {},
|
|
_shiftAmount: 0,
|
|
_deckTransitioning: false,
|
|
|
|
/*
|
|
* Properties
|
|
*/
|
|
|
|
get width() {
|
|
return window.innerWidth || 1366;
|
|
},
|
|
|
|
get height() {
|
|
return window.innerHeight || 768;
|
|
},
|
|
|
|
get contentHeight() {
|
|
return this._getContentHeightForWindow(this.height);
|
|
},
|
|
|
|
get contentTop () {
|
|
return Elements.toolbar.getBoundingClientRect().bottom;
|
|
},
|
|
|
|
get viewableHeight() {
|
|
return this._getViewableHeightForContent(this.contentHeight);
|
|
},
|
|
|
|
get isKeyboardOpened() {
|
|
return MetroUtils.keyboardVisible;
|
|
},
|
|
|
|
get isKeyboardTransitioning() {
|
|
return this._deckTransitioning;
|
|
},
|
|
|
|
/*
|
|
* Public apis
|
|
*/
|
|
|
|
init: function init() {
|
|
window.addEventListener("resize", this, false);
|
|
|
|
// Message manager msgs we listen for
|
|
messageManager.addMessageListener("Content:RepositionInfoResponse", this);
|
|
|
|
// Observer msgs we listen for
|
|
Services.obs.addObserver(this, "metro_softkeyboard_shown", false);
|
|
Services.obs.addObserver(this, "metro_softkeyboard_hidden", false);
|
|
|
|
// setup initial values for browser form repositioning
|
|
this._shiftBrowserDeck(0);
|
|
|
|
// initialize our custom width and height styles
|
|
this._initStyles();
|
|
|
|
// apply default styling
|
|
this.update();
|
|
},
|
|
|
|
shutdown: function shutdown() {
|
|
messageManager.removeMessageListener("Content:RepositionInfoResponse", this);
|
|
Services.obs.removeObserver(this, "metro_softkeyboard_shown");
|
|
Services.obs.removeObserver(this, "metro_softkeyboard_hidden");
|
|
},
|
|
|
|
update: function cao_update (width, height) {
|
|
let oldWidth = parseInt(this.styles["window-width"].width);
|
|
let oldHeight = parseInt(this.styles["window-height"].height);
|
|
|
|
let newWidth = width || this.width;
|
|
let newHeight = height || this.height;
|
|
|
|
if (newHeight == oldHeight && newWidth == oldWidth)
|
|
return;
|
|
|
|
this.styles["window-width"].width = newWidth + "px";
|
|
this.styles["window-width"].maxWidth = newWidth + "px";
|
|
this.styles["window-height"].height = newHeight + "px";
|
|
this.styles["window-height"].maxHeight = newHeight + "px";
|
|
|
|
this.updateContentArea(newWidth, this._getContentHeightForWindow(newHeight));
|
|
this._disatchBrowserEvent("SizeChanged");
|
|
},
|
|
|
|
updateContentArea: function cao_updateContentArea (width, height) {
|
|
let oldHeight = parseInt(this.styles["content-height"].height);
|
|
let oldWidth = parseInt(this.styles["content-width"].width);
|
|
|
|
let newWidth = width || this.width;
|
|
let newHeight = height || this.contentHeight;
|
|
|
|
if (newHeight == oldHeight && newWidth == oldWidth)
|
|
return;
|
|
|
|
this.styles["content-height"].height = newHeight + "px";
|
|
this.styles["content-height"].maxHeight = newHeight + "px";
|
|
this.styles["content-width"].width = newWidth + "px";
|
|
this.styles["content-width"].maxWidth = newWidth + "px";
|
|
|
|
this.updateViewableArea(newWidth, this._getViewableHeightForContent(newHeight));
|
|
this._disatchBrowserEvent("ContentSizeChanged");
|
|
},
|
|
|
|
updateViewableArea: function cao_updateViewableArea (width, height) {
|
|
let oldHeight = parseInt(this.styles["viewable-height"].height);
|
|
let oldWidth = parseInt(this.styles["viewable-width"].width);
|
|
|
|
let newWidth = width || this.width;
|
|
let newHeight = height || this.viewableHeight;
|
|
|
|
if (newHeight == oldHeight && newWidth == oldWidth)
|
|
return;
|
|
|
|
this.styles["viewable-height"].height = newHeight + "px";
|
|
this.styles["viewable-height"].maxHeight = newHeight + "px";
|
|
this.styles["viewable-width"].width = newWidth + "px";
|
|
this.styles["viewable-width"].maxWidth = newWidth + "px";
|
|
|
|
this.updateAppBarPosition();
|
|
|
|
// Update the back/tab button states. If the keyboard is up
|
|
// these are hidden.
|
|
BrowserUI._updateButtons();
|
|
|
|
this._disatchBrowserEvent("ViewableSizeChanged");
|
|
},
|
|
|
|
updateAppBarPosition: function updateAppBarPosition(aForceDown) {
|
|
// Adjust the app and find bar position above the soft keyboard
|
|
let keyboardHeight = aForceDown ? 0 : MetroUtils.keyboardHeight;
|
|
Elements.navbar.style.bottom = keyboardHeight + "px";
|
|
Elements.contextappbar.style.bottom = keyboardHeight + "px";
|
|
Elements.findbar.style.bottom = keyboardHeight + "px";
|
|
},
|
|
|
|
/*
|
|
* Called by BrowserUI right before we blur the nav bar edit. We use
|
|
* this to get a head start on shuffling app bars around before the
|
|
* soft keyboard transitions down.
|
|
*/
|
|
navBarWillBlur: function navBarWillBlur() {
|
|
this.updateAppBarPosition(true);
|
|
},
|
|
|
|
onBrowserCreated: function onBrowserCreated(aBrowser) {
|
|
aBrowser.classList.add("content-width");
|
|
aBrowser.classList.add("content-height");
|
|
},
|
|
|
|
/*
|
|
* Event handling
|
|
*/
|
|
|
|
_onKeyboardDisplayChanging: function _onKeyboardDisplayChanging(aNewState) {
|
|
if (aNewState) {
|
|
Elements.stack.setAttribute("keyboardVisible", true);
|
|
} else {
|
|
Elements.stack.removeAttribute("keyboardVisible");
|
|
}
|
|
|
|
this.updateViewableArea();
|
|
|
|
if (!aNewState) {
|
|
this._shiftBrowserDeck(0);
|
|
return;
|
|
}
|
|
|
|
// Request info about the target form element to see if we
|
|
// need to reposition the browser above the keyboard.
|
|
Browser.selectedBrowser.messageManager.sendAsyncMessage("Browser:RepositionInfoRequest", {
|
|
viewHeight: this.viewableHeight,
|
|
});
|
|
},
|
|
|
|
_onRepositionResponse: function _onRepositionResponse(aJsonMsg) {
|
|
if (!aJsonMsg.reposition || !this.isKeyboardOpened) {
|
|
this._shiftBrowserDeck(0);
|
|
return;
|
|
}
|
|
this._shiftBrowserDeck(aJsonMsg.raiseContent);
|
|
},
|
|
|
|
observe: function cao_observe(aSubject, aTopic, aData) {
|
|
// Note these are fired before the transition starts. Also per MS specs
|
|
// we should not do anything "heavy" here. We have about 100ms before
|
|
// windows just ignores the event and starts the animation.
|
|
switch (aTopic) {
|
|
case "metro_softkeyboard_hidden":
|
|
case "metro_softkeyboard_shown":
|
|
// Mark that we are in a transition state. Auto-complete and other
|
|
// popups will wait for an event before displaying anything.
|
|
this._deckTransitioning = true;
|
|
// This also insures tap events are delivered before we fire
|
|
// this event. Form repositioning requires the selection handler
|
|
// be running before we send this.
|
|
let self = this;
|
|
let state = aTopic == "metro_softkeyboard_shown";
|
|
Util.executeSoon(function () {
|
|
self._onKeyboardDisplayChanging(state);
|
|
});
|
|
break;
|
|
}
|
|
},
|
|
|
|
handleEvent: function cao_handleEvent(aEvent) {
|
|
switch (aEvent.type) {
|
|
case 'resize':
|
|
if (aEvent.target != window)
|
|
return;
|
|
ContentAreaObserver.update();
|
|
break;
|
|
}
|
|
},
|
|
|
|
receiveMessage: function sh_receiveMessage(aMessage) {
|
|
switch (aMessage.name) {
|
|
case "Content:RepositionInfoResponse":
|
|
this._onRepositionResponse(aMessage.json);
|
|
break;
|
|
}
|
|
},
|
|
|
|
/*
|
|
* Internal helpers
|
|
*/
|
|
|
|
_shiftBrowserDeck: function _shiftBrowserDeck(aAmount) {
|
|
if (aAmount == 0) {
|
|
this._deckTransitioning = false;
|
|
this._dispatchWindowEvent("KeyboardChanged", this.isKeyboardOpened);
|
|
}
|
|
|
|
if (this._shiftAmount == aAmount)
|
|
return;
|
|
|
|
this._shiftAmount = aAmount;
|
|
this._dispatchWindowEvent("MozDeckOffsetChanging", aAmount);
|
|
|
|
// Elements.browsers is the deck all browsers sit in
|
|
let self = this;
|
|
Elements.browsers.addEventListener("transitionend", function () {
|
|
Elements.browsers.removeEventListener("transitionend", arguments.callee, true);
|
|
self._deckTransitioning = false;
|
|
self._dispatchWindowEvent("MozDeckOffsetChanged", aAmount);
|
|
self._dispatchWindowEvent("KeyboardChanged", self.isKeyboardOpened);
|
|
}, true);
|
|
|
|
// selectAtPoint bug 858471
|
|
//Elements.browsers.style.transform = "translateY(" + (-1 * aAmount) + "px)";
|
|
Elements.browsers.style.marginTop = "" + (-1 * aAmount) + "px";
|
|
},
|
|
|
|
_dispatchWindowEvent: function _dispatchWindowEvent(aEventName, aDetail) {
|
|
let event = document.createEvent("UIEvents");
|
|
event.initUIEvent(aEventName, true, false, window, aDetail);
|
|
window.dispatchEvent(event);
|
|
},
|
|
|
|
_disatchBrowserEvent: function (aName, aDetail) {
|
|
setTimeout(function() {
|
|
let event = document.createEvent("Events");
|
|
event.initEvent(aName, true, false);
|
|
Elements.browsers.dispatchEvent(event);
|
|
}, 0);
|
|
},
|
|
|
|
_initStyles: function _initStyles() {
|
|
let stylesheet = document.styleSheets[0];
|
|
for (let style of ["window-width", "window-height",
|
|
"content-height", "content-width",
|
|
"viewable-height", "viewable-width"]) {
|
|
let index = stylesheet.insertRule("." + style + " {}", stylesheet.cssRules.length);
|
|
this.styles[style] = stylesheet.cssRules[index].style;
|
|
}
|
|
},
|
|
|
|
_getContentHeightForWindow: function (windowHeight) {
|
|
return windowHeight;
|
|
},
|
|
|
|
_getViewableHeightForContent: function (contentHeight) {
|
|
let keyboardHeight = MetroUtils.keyboardHeight;
|
|
return contentHeight - keyboardHeight;
|
|
},
|
|
|
|
_debugDumpDims: function _debugDumpDims() {
|
|
let width = parseInt(this.styles["window-width"].width);
|
|
let height = parseInt(this.styles["window-height"].height);
|
|
Util.dumpLn("window:", width, height);
|
|
width = parseInt(this.styles["content-width"].width);
|
|
height = parseInt(this.styles["content-height"].height);
|
|
Util.dumpLn("content:", width, height);
|
|
width = parseInt(this.styles["viewable-width"].width);
|
|
height = parseInt(this.styles["viewable-height"].height);
|
|
Util.dumpLn("viewable:", width, height);
|
|
}
|
|
};
|