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samples/winrt/JavaScript/sample-utils/sample-utils.js Normal file
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//// Copyright (c) Microsoft Corporation. All rights reserved
// This file is a part of the SDK sample framework. For code demonstrating scenarios in this particular sample,
// please see the html, css and js folders.
(function () {
//
// Helper controls used in the sample pages
//
// The ScenarioInput control inserts the appropriate markup to get labels & controls
// hooked into the input section of a scenario page so that it's not repeated in
// every one.
var lastError = "";
var lastStatus = "";
var ScenarioInput = WinJS.Class.define(
function (element, options) {
element.winControl = this;
this.element = element;
new WinJS.Utilities.QueryCollection(element)
.setAttribute("role", "main")
.setAttribute("aria-labelledby", "inputLabel");
element.id = "input";
this.addInputLabel(element);
this.addDetailsElement(element);
this.addScenariosPicker(element);
}, {
addInputLabel: function (element) {
var label = document.createElement("h2");
label.textContent = "Input";
label.id = "inputLabel";
element.parentNode.insertBefore(label, element);
},
addScenariosPicker: function (parentElement) {
var scenarios = document.createElement("div");
scenarios.id = "scenarios";
var control = new ScenarioSelect(scenarios);
parentElement.insertBefore(scenarios, parentElement.childNodes[0]);
},
addDetailsElement: function (sourceElement) {
var detailsDiv = this._createDetailsDiv();
while (sourceElement.childNodes.length > 0) {
detailsDiv.appendChild(sourceElement.removeChild(sourceElement.childNodes[0]));
}
sourceElement.appendChild(detailsDiv);
},
_createDetailsDiv: function () {
var detailsDiv = document.createElement("div");
new WinJS.Utilities.QueryCollection(detailsDiv)
.addClass("details")
.setAttribute("role", "region")
.setAttribute("aria-labelledby", "descLabel")
.setAttribute("aria-live", "assertive");
var label = document.createElement("h3");
label.textContent = "Description";
label.id = "descLabel";
detailsDiv.appendChild(label);
return detailsDiv;
},
}
);
// The ScenarioOutput control inserts the appropriate markup to get labels & controls
// hooked into the output section of a scenario page so that it's not repeated in
// every one.
var ScenarioOutput = WinJS.Class.define(
function (element, options) {
element.winControl = this;
this.element = element;
new WinJS.Utilities.QueryCollection(element)
.setAttribute("role", "region")
.setAttribute("aria-labelledby", "outputLabel")
.setAttribute("aria-live", "assertive");
element.id = "output";
this._addOutputLabel(element);
this._addStatusOutput(element);
}, {
_addOutputLabel: function (element) {
var label = document.createElement("h2");
label.id = "outputLabel";
label.textContent = "Output";
element.parentNode.insertBefore(label, element);
},
_addStatusOutput: function (element) {
var statusDiv = document.createElement("div");
statusDiv.id = "statusMessage";
statusDiv.setAttribute("role", "textbox");
element.insertBefore(statusDiv, element.childNodes[0]);
}
}
);
// Sample infrastructure internals
var currentScenarioUrl = null;
WinJS.Navigation.addEventListener("navigating", function (evt) {
currentScenarioUrl = evt.detail.location;
});
WinJS.log = function (message, tag, type) {
var isError = (type === "error");
var isStatus = (type === "status");
if (isError || isStatus) {
var statusDiv = /* @type(HTMLElement) */ document.getElementById("statusMessage");
if (statusDiv) {
statusDiv.innerText = message;
if (isError) {
lastError = message;
statusDiv.style.color = "blue";
} else if (isStatus) {
lastStatus = message;
statusDiv.style.color = "green";
}
}
}
};
// Control that populates and runs the scenario selector
var ScenarioSelect = WinJS.UI.Pages.define("/sample-utils/scenario-select.html", {
ready: function (element, options) {
var that = this;
var selectElement = WinJS.Utilities.query("#scenarioSelect", element);
this._selectElement = selectElement[0];
SdkSample.scenarios.forEach(function (s, index) {
that._addScenario(index, s);
});
selectElement.listen("change", function (evt) {
var select = evt.target;
if (select.selectedIndex >= 0) {
var newUrl = select.options[select.selectedIndex].value;
WinJS.Navigation.navigate(newUrl);
}
});
selectElement[0].size = (SdkSample.scenarios.length > 5 ? 5 : SdkSample.scenarios.length);
if (SdkSample.scenarios.length === 1) {
// Avoid showing down arrow when there is only one scenario
selectElement[0].setAttribute("multiple", "multiple");
}
// Use setImmediate to ensure that the select element is set as active only after
// the scenario page has been constructed.
setImmediate(function () {
that._selectElement.setActive();
});
},
_addScenario: function (index, info) {
var option = document.createElement("option");
if (info.url === currentScenarioUrl) {
option.selected = "selected";
}
option.text = (index + 1) + ") " + info.title;
option.value = info.url;
this._selectElement.appendChild(option);
}
});
function activated(e) {
WinJS.Utilities.query("#featureLabel")[0].textContent = SdkSample.sampleTitle;
}
WinJS.Application.addEventListener("activated", activated, false);
// Export public methods & controls
WinJS.Namespace.define("SdkSample", {
ScenarioInput: ScenarioInput,
ScenarioOutput: ScenarioOutput
});
// SDK Sample Test helper
document.TestSdkSample = {
getLastError: function () {
return lastError;
},
getLastStatus: function () {
return lastStatus;
},
selectScenario: function (scenarioID) {
scenarioID = scenarioID >> 0;
var select = document.getElementById("scenarioSelect");
var newUrl = select.options[scenarioID - 1].value;
WinJS.Navigation.navigate(newUrl);
}
};
})();