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function e(id) {

return document.getElementById(id);

}

/**

* Send message to main extension for HTML to display

* @param type: enable/disable

*/

function sendMessage(type) {

chrome.runtime.sendMessage({

type: type,

tabId: chrome.devtools.inspectedWindow.tabId,

});

}

/**

* Turn on the Switch Planner recording mode, and hide the long description.

*/

function enableSwitchPlanner() {

sendMessage("enable");

e("SwitchPlannerDescription").style.display = "none";

e("SwitchPlannerDetails").style.display = "block";

// Hack: Fetch and display summary information from background page

// once per second.

setInterval(display, 1000);

chrome.devtools.inspectedWindow.reload();

}

/**

* Disable the switch planner and reload, so any state is forgotten and

* the long description is restored.

*/

function disableSwitchPlanner() {

sendMessage("disable");

document.location.reload();

}

/**

* Fetch summary HTML of the planner results from the background page for

* display in the devtools panel.

*/

function display() {

chrome.runtime.sendMessage({

type: "getSmallHtml",

tabId: chrome.devtools.inspectedWindow.tabId,

}, function(response) {

e("SwitchPlannerDetails").innerHTML = response.html;

e("SwitchPlannerResults").style.display = "block";

});

}

window.onload = function() {

// Open a connection to the background page. Right now this is only used

// by the background page so it knows when the devtools pane has closed.

// We don't receive messages from the background page currently, though that

// may be a future improvement. Sending messages to the background page doesn't

// require an existing connection.

chrome.runtime.connect({ name: "devtools-page" });

var checkbox = e("SwitchPlannerCheckbox");

checkbox.addEventListener("change", function() {

if (checkbox.checked) {

enableSwitchPlanner();

} else {

disableSwitchPlanner();

}

});

e("SwitchPlannerDetailsLink").addEventListener("click", function() {

window.open("switch-planner.html?tab=" + chrome.devtools.inspectedWindow.tabId);

});

// Since this is rendered in a devtools console, we have to make clicks on the

// link open a new window.

e("MixedContentLink").addEventListener("click", function(e) {

window.open(e.target.href);

});

};