author | hgs |
Fri, 15 Oct 2010 17:30:59 -0400 | |
changeset 16 | 3c88a81ff781 |
parent 3 | 0954f5dd2cd0 |
permissions | -rw-r--r-- |
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/*! |
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\file zoombar.js This module contains the ZoomBar class. |
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*/ |
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/*! |
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Class to handle displaying the zoom bar. The zoom bar is displayed when the |
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user presses the zoom button on the toolbar. It provides access to the zoom |
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in and out functions. It is hidden when the main toolbar is hidden on user inactivity |
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and on timer maintained by native code |
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*/ |
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function ZoomBar() |
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{ |
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var enabled = true; // zooming enabled flag - initially enabled |
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// Private Methods |
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//! Write zoom bar HTML code to document. |
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function _zoombar_write() { |
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var html = ''+ |
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'<div id="zoomBarDiv">'+ |
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'<div class = "GinebraSnippet zoomBarBtn" id="zoomBarBtnIn" data-GinebraVisible="false" data-GinebraHidesContent="true" data-GinebraNativeClass="ActionButton"> </div>'+ |
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'<div class = "GinebraSnippet zoomBarBtn" id="zoomBarBtnOut" data-GinebraVisible="false" data-GinebraHidesContent="true" data-GinebraNativeClass="ActionButton"> </div>'+ |
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'</div>'; |
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document.write(html); |
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} |
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//! Create zoom in & out buttons. |
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function _setActions() { |
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// IMPORTANT: use QT qrc style for resource reference since this snippet is a QT mapped object |
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// and resource processing is done in QT, not javascript |
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snippets.zoomBarBtnIn.connectAction("zoomIn", "WebView", true, true); |
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snippets.zoomBarBtnOut.connectAction("zoomOut", "WebView", true, true); |
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snippets.zoomBarBtnIn.setIcon(":/zoombar/icon_zoom+.png"); |
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snippets.zoomBarBtnIn.setActiveIcon(":/zoombar/icon_zoom+_pressed.png"); |
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snippets.zoomBarBtnIn.setDisabledIcon(":/zoombar/icon_zoom+_disabled.png"); |
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snippets.zoomBarBtnOut.setIcon(":/zoombar/icon_zoom-.png"); |
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snippets.zoomBarBtnOut.setActiveIcon(":/zoombar/icon_zoom-_pressed.png"); |
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snippets.zoomBarBtnOut.setDisabledIcon(":/zoombar/icon_zoom-_disabled.png"); |
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// Connect to each action's "changed" signal. |
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window.views.WebView.actions.zoomIn.changed.connect( |
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createDelegate(this, handleChange)); |
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window.views.WebView.actions.zoomOut.changed.connect( |
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createDelegate(this, handleChange)); |
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} |
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//! Handle action object changes. In particular we are interested in |
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//! changes to the enabled state of the object. |
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function handleChange() { |
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var saveEnabled = enabled; |
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// enable zoom button if either zoom-in or zoom-out action enabled |
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if (window.views.WebView.actions.zoomIn.enabled |
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|| window.views.WebView.actions.zoomOut.enabled) { |
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enabled = true; |
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} else { |
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enabled = false; |
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} |
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// if state changed update web toolbar zoom button state |
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if (saveEnabled != enabled) { |
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// enabled state changed |
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window.snippets.ZoomButtonSnippet.setEnabled(enabled); |
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} |
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} |
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//! After chrome is loaded, create zoombar buttons and setup show/hide |
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//! handlers. |
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function _chromeLoadComplete() { |
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_setActions(); |
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} |
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_zoombar_write(); |
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window.chrome.chromeComplete.connect(_chromeLoadComplete); |
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} |