security-and-privacy/CanvasBlocker
security-and-privacy/CanvasBlocker
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Code Releases Activity

Added Numbers in pageAction icon and added content script.

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This commit is contained in:
kkapsner 2016-12-26 11:25:43 +01:00
parent 25b0d400be
commit 753dbcf616
6 changed files with 66 additions and 9 deletions
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57
webextension/background.js
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@ -1,16 +1,57 @@
console.log("background");
var getPageActionIcon = function(){
var faktor = 2;
var canvas = document.createElement("canvas");
canvas.width = canvas.height = 19 * faktor;
var context = canvas.getContext("2d");
var img = document.createElement("img");
img.src = "icons/printed" + (19 * faktor) + ".png"
return function getPageActionIcon(c){
context.clearRect(0, 0, canvas.width, canvas.height);
context.drawImage(img, 0, 0, canvas.width, canvas.height);
if (c > 1){
context.fillStyle = "#000000";
context.fillRect(9 * faktor, 9 * faktor, 10 * faktor, 10 * faktor);
context.strokeStyle = context.fillStyle = "#FFFFFF";
context.textAlign = "center";
context.textBaseline = "middle";
context.font = "Bold " + (10 * faktor) + "px Arial";
context.fillText(c < 10? c: ">", 14 * faktor, 15 * faktor);
}
return context.getImageData(0, 0, canvas.width, canvas.height);
}
}();
function updatePageActionIcon(tabId, c){
if (c === 0){
browser.pageAction.hide(tabId);
}
else {
browser.pageAction.show(tabId);
browser.pageAction.setIcon({
tabId: tabId,
imageData: getPageActionIcon(c)
});
}
}
var c = 0;
browser.tabs.query({}).then(function(tabs){
console.log("tabs", tabs);
tabs.forEach(function(tab){
console.log("tab", tab);
browser.pageAction.show(tab.id).then(function(){console.log("success");}, function(){console.log("error");});
browser.pageAction.show(tab.id);
});
});
browser.tabs.onActivated.addListener(function(tab){
browser.pageAction.show(tab.id);
browser.tabs.onActivated.addListener(function(activeInfo){
c += 1;
// console.log(c);
updatePageActionIcon(activeInfo.tabId , c);
});
browser.tabs.onUpdate.addistener(function(tab){
browser.pageAction.show(tab.id);
browser.tabs.onUpdated.addListener(function(tabId){
// c += 1;
//console.log(c);
// updatePageActionIcon(tabId, c);
});