+++ /dev/null
-// Displays the page magnifier
-function webdeveloper_displayPageMagnifier(element)
-{
- var canvas = document.getElementById("webdeveloper-page-magnifier");
-
- // If the canvas is not set or has no context
- if(!canvas || !canvas.getContext)
- {
- window.openDialog("chrome://webdeveloper/content/message/message.xul", "webdeveloper-message-dialog", "centerscreen,chrome,modal", document.getElementById("webdeveloper-string-bundle").getString("webdeveloper_firefox15Required"));
- }
- else
- {
- var checked = false;
- var container = document.getElementById("webdeveloper-page-magnifier-container");
-
- // If the element is set
- if(element)
- {
- checked = element.getAttribute("checked");
- }
-
- webdeveloper_configureElement(document.getElementById("webdeveloper-page-magnifier-toolbar"), "hidden", !checked);
-
- // If displaying page validation
- if(checked)
- {
- var browserBoxObject = webdeveloper_getSelectedBrowser().boxObject;
-
- document.getElementById("webdeveloper.magnification.level").value = webdeveloper_getStringPreference("webdeveloper.magnification.level", true);
- webdeveloper_updatePageMagnifier(0, 0);
-
- container.addEventListener("DOMMouseScroll", webdeveloper_scrollPageMagnifier, false);
- window.addEventListener("mousemove", webdeveloper_movePageMagnifier, false);
-
- container.style.left = (browserBoxObject.x + 10) + "px";
- container.style.top = (browserBoxObject.y + 10) + "px";
- container.hidden = false;
- }
- else
- {
- // Try to remove the event listener
- try
- {
- container.removeEventListener("DOMMouseScroll", webdeveloper_scrollPageMagnifier, false);
- }
- catch(exception)
- {
- // Do nothing
- }
-
- // Try to remove the event listener
- try
- {
- window.removeEventListener("mousemove", webdeveloper_movePageMagnifier, false);
- }
- catch(exception)
- {
- // Do nothing
- }
-
- container.hidden = true;
- }
-
- webdeveloper_toggleAppliedStyle(element, "webdeveloper-display-page-magnifier");
- }
-}
-
-// Called when the page magnifier is moved
-function webdeveloper_movePageMagnifier(event)
-{
- var canvas = document.getElementById("webdeveloper-page-magnifier");
- var eventTarget = event.target;
-
- // If the canvas and event target are set and the canvas is the event target
- if(canvas && eventTarget && canvas == eventTarget)
- {
- var container = document.getElementById("webdeveloper-page-magnifier-container");
-
- // If the container is set
- if(container)
- {
- var browserBoxObject = webdeveloper_getSelectedBrowser().boxObject;
- var browserXPosition = browserBoxObject.x;
- var browserYPosition = browserBoxObject.y;
- var canvasHalfHeight = canvas.height / 2;
- var canvasHalfWidth = canvas.width / 2;
- var containerXPosition = event.clientX - canvasHalfWidth;
- var containerYPosition = event.clientY - canvasHalfHeight;
- var documentElement = webdeveloper_getContentDocument().documentElement;
- var magnificationLevel = parseFloat(webdeveloper_getStringPreference("webdeveloper.magnification.level", true));
- var magnifierXPosition = event.clientX - browserXPosition - (canvasHalfWidth / magnificationLevel) + documentElement.scrollLeft;
- var magnifierYPosition = event.clientY - browserYPosition - (canvasHalfHeight / magnificationLevel) + documentElement.scrollTop;
-
- // If the container X position is less than the browser X position
- if(containerXPosition < browserXPosition)
- {
- containerXPosition = browserXPosition;
- }
-
- // If the container Y position is less than the browser Y position
- if(containerYPosition < browserYPosition)
- {
- containerYPosition = browserYPosition;
- }
-
- // If the magnifier X position is less than 0
- if(magnifierXPosition < 0)
- {
- magnifierXPosition = 0;
- }
-
- // If the magnifier Y position is less than 0
- if(magnifierYPosition < 0)
- {
- magnifierYPosition = 0;
- }
-
- container.style.left = containerXPosition + "px";
- container.style.top = containerYPosition + "px";
-
- webdeveloper_updatePageMagnifier(magnifierXPosition, magnifierYPosition);
- }
- }
-}
-
-// Called when the page magnifier is scrolled with the mouse wheel
-function webdeveloper_scrollPageMagnifier(event)
-{
- var eventDetail = event.detail;
-
- // If the event detail is set
- if(eventDetail)
- {
- var magnificationLevel = parseFloat(webdeveloper_getStringPreference("webdeveloper.magnification.level", true));
-
- // If the event detail is greater than zero (scroll down)
- if(eventDetail > 0)
- {
- // If the magnification level is greater than one
- if(magnificationLevel > 1)
- {
- magnificationLevel -= 1;
- }
- }
- else
- {
- magnificationLevel += 1;
- }
-
- document.getElementById("webdeveloper.magnification.level").value = magnificationLevel;
-
- webdeveloper_setStringPreference("webdeveloper.magnification.level", magnificationLevel);
- webdeveloper_updatePageMagnifier(0, 0);
-
- event.preventDefault();
- }
-}
-
-// Updates the magnification level
-function webdeveloper_updateMagnificationLevel(element)
-{
- var magnificationLevel = element.value;
- var stringBundle = document.getElementById("webdeveloper-string-bundle");
-
- // If the magnification level is empty or not a number or less than zero
- if(!magnificationLevel || parseFloat(magnificationLevel) != magnificationLevel || magnificationLevel <= 0)
- {
- webdeveloper_error(stringBundle.getString("webdeveloper_invalidWidth"));
- }
- else
- {
- webdeveloper_setStringPreference("webdeveloper.magnification.level", magnificationLevel);
- webdeveloper_updatePageMagnifier(0, 0);
- }
-}
-
-// Updates the page magnifier
-function webdeveloper_updatePageMagnifier(xPosition, yPosition)
-{
- var canvas = document.getElementById("webdeveloper-page-magnifier");
-
- // If the canvas was found
- if(canvas)
- {
- var context = canvas.getContext("2d");
- var height = canvas.height;
- var magnificationLevel = parseFloat(webdeveloper_getStringPreference("webdeveloper.magnification.level", true));
- var width = canvas.width;
-
- context.save();
- context.scale(magnificationLevel, magnificationLevel);
- context.drawWindow(webdeveloper_getContentWindow(), xPosition, yPosition, (xPosition + width) / magnificationLevel, (yPosition + height) / magnificationLevel, "rgb(255, 255, 255)");
- context.restore();
- }
-}
\ No newline at end of file
projects / pompage.git / blobdiff