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added example structure for json download and calendar visualization functions

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Raphael Maenle
2020-02-24 23:06:22 +01:00
commit 8a1d8c6882
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Copyright (c) 2012 Samsung Electronics Co., Ltd. All rights reserved.
Except as noted, this software is licensed under Apache License, Version 2.
Please, see the LICENSE.APLv2 file for Apache License, Version 2 terms and conditions.

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<?xml version="1.0" encoding="UTF-8"?>
<widget xmlns:tizen="http://tizen.org/ns/widgets" xmlns="http://www.w3.org/ns/widgets" id="http://yourdomain/CalendarWatch" version="1.0.0" viewmodes="maximized">
<tizen:application id="6dY8X5wAPN.CalendarWatch" package="6dY8X5wAPN" required_version="2.3.1"/>
<tizen:category name="http://tizen.org/category/wearable_clock"/>
<content src="index.html"/>
<feature name="http://tizen.org/feature/screen.size.all"/>
<icon src="icon.png"/>
<name>CalendarWatch</name>
<tizen:privilege name="http://tizen.org/privilege/download"/>
<tizen:privilege name="http://tizen.org/privilege/alarm"/>
<tizen:privilege name="http://tizen.org/privilege/calendar.read"/>
<tizen:privilege name="http://tizen.org/privilege/calendar.write"/>
<tizen:profile name="wearable"/>
</widget>

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html, body {
width: 100%;
height: 100%;
margin: 0;
overflow-y: hidden;
}
#container {
display: -webkit-flex;
-webkit-align-items: center;
width: 100%;
height: 100%
}
#canvas-layout {
position: absolute;
width: 100%;
height: 100%;
z-index: 1;
}
#canvas-content {
position: absolute;
width: 100%;
height: 100%;
z-index: 2;
}

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
<meta name="description" content="Canvas Watch - Canvas API & Time API" />
<title>Canvas Watch</title>
<link rel="stylesheet" type="text/css" href="css/style.css" />
</head>
<body>
<div id="container">
<canvas id="canvas-layout"></canvas>
<canvas id="canvas-content"></canvas>
</div>
<script src="js/app.js"></script>
</body>
</html>

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/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
(function() {
var canvasLayout,
canvasContent,
ctxLayout,
ctxContent,
center,
watchRadius;
function readJSON(path) {
var xhr = new XMLHttpRequest();
xhr.open('GET', path, true);
xhr.responseType = 'blob';
xhr.onload = function(e) {
console.log("status " + this.status);
if (this.status == 0) {
var file = new File([this.response], 'temp');
var fileReader = new FileReader();
fileReader.addEventListener('load', function(){
console.log(fileReader.result);
});
fileReader.readAsText(file);
}
}
xhr.send();
}
function getJSON() {
var downloadRequest = new tizen.DownloadRequest('http://download.tizen.org/tools/README.txt', 'downloads');
tizen.systeminfo.getPropertyValue('NETWORK', function(networkInfo) {
if (networkInfo.networkType === 'NONE') {
console.log('Network connection is not available.Download is not possible.');
downloadRequest = null;
}
});
var listener = {
/* When the download progresses (interval is platform-dependent) */
onprogress: function(id, receivedSize, totalSize) {
console.log('Received with id: ' + id + ', ' + receivedSize + '/' + totalSize);
},
/* When the user pauses the download */
onpaused: function(id) {
console.log('Paused with id: ' + id);
},
/* When the user cancels the download */
oncanceled: function(id) {
console.log('Canceled with id: ' + id);
},
/* When the download is completed */
oncompleted: function(id, fullPath) {
console.log('Completed with id: ' + id + ', full path: ' + fullPath);
readJSON(fullPath);
},
/* When the download fails */
onfailed: function(id, error) {
console.log('Failed with id: ' + id + ', error name: ' + error.name);
}
};
console.log("starting download");
downloadId = tizen.download.start(downloadRequest, listener);
console.log(tizen.download.getState(downloadId));
console.log("done");
}
/**
* Renders a circle with specific center, radius, and color
* @private
* @param {object} context - the context for the circle to be placed in
* @param {number} radius - the radius of the circle
* @param {string} color - the color of the circle
*/
function renderCircle(context, center, radius, color) {
context.save();
context.beginPath();
context.fillStyle = color;
context.arc(center.x, center.y, radius, 0, 2 * Math.PI);
context.fill();
context.closePath();
context.restore();
}
/**
* Renders a partial with specific center, radius, and color
* @private
* @param {object} context - the context for the circle to be placed in
* @param {number} radius - the radius of the circle
* @param {string} color - the color of the circle
*/
function renderArc(context, center, radius, color, startAngle, endAngle) {
context.save();
context.beginPath();
seperation = 5;
startAngle += seperation;
if(startAngle >= 360)
startAngle -= 360;
endAngle -= seperation;
if(endAngle<0)
endAngle += 360;
context.arc(center.x, center.y, radius, startAngle * Math.PI / 180., endAngle * Math.PI / 180.);
context.fillStyle = color;
context.strokeStyle = color;
context.lineWidth = 18;
context.stroke();
context.restore();
renderCircle(context, polToCart(radius, startAngle), 9, color);
renderCircle(context, polToCart(radius, endAngle), 9, color);
}
function polToCart(radius, angle) {
pos = {
x: center.x + radius * Math.cos(angle * Math.PI / 180),
y: center.y + radius * Math.sin(angle * Math.PI / 180)
};
return pos;
}
function hourToAngle(hour) {
}
/**
* Renders a needle with specific center, angle, start point, end point, width and color
* @private
* @param {object} context - the context for the needle to be placed in
* @param {number} angle - the angle of the needle (0 ~ 360)
* @param {number} startPoint - the start point of the needle (-1.0 ~ 1.0)
* @param {number} startPoint - the end point of the needle (-1.0 ~ 1.0)
* @param {number} width - the width of the needle
* @param {string} color - the color of the needle
*/
function renderNeedle(context, angle, startPoint, endPoint, width, color) {
var radius = context.canvas.width / 2,
centerX = context.canvas.width / 2,
centerY = context.canvas.height / 2,
dxi = radius * Math.cos(angle) * startPoint,
dyi = radius * Math.sin(angle) * startPoint,
dxf = radius * Math.cos(angle) * endPoint,
dyf = radius * Math.sin(angle) * endPoint;
context.save();
context.beginPath();
context.lineWidth = width;
context.strokeStyle = color;
context.moveTo(centerX + dxi, centerY + dyi);
context.lineTo(centerX + dxf, centerY + dyf);
context.stroke();
context.closePath();
context.restore();
}
/**
* Renders text at a specific center, radius, and color
* @private
* @param {object} context - the context for the text to be placed in
* @param {string} text - the text to be placed
* @param {number} x - the x-coordinate of the text
* @param {number} y - the y-coordinate of the text
* @param {number} textSize - the size of the text in pixel
* @param {string} color - the color of the text
*/
function renderText(context, text, x, y, textSize, color) {
context.save();
context.beginPath();
context.font = textSize + "px Courier";
context.textAlign = "center";
context.textBaseline = "middle";
context.fillStyle = color;
context.fillText(text, x, y);
context.closePath();
context.restore();
}
/**
* Draws the basic layout of the watch
* @private
*/
function drawWatchLayout() {
var grd,
angle,
i,
j;
// Clear canvas
ctxLayout.clearRect(0, 0, ctxLayout.canvas.width, ctxLayout.canvas.height);
// Draw the background circle
/*
renderCircle(ctxLayout, center, watchRadius, "#000000");
grd = ctxLayout.createLinearGradient(0, 0, watchRadius * 2, 0);
grd.addColorStop(0, "#000000");
grd.addColorStop(0.5, "#454545");
grd.addColorStop(1, "#000000");
ctxLayout.fillStyle = grd;
renderCircle(ctxLayout, center, watchRadius * 0.945, grd);
renderCircle(ctxLayout, center, watchRadius * 0.7, "#000000");
*/
// Draw the dividers
// 60 unit divider
/*
for (i = 1; i <= 60; i++) {
angle = (i - 15) * (Math.PI * 2) / 60;
renderNeedle(ctxLayout, angle, 0.95, 1.0, 1, "#c4c4c4");
}
// 12 unit divider
for (j = 1; j <= 12; j++) {
angle = (j - 3) * (Math.PI * 2) / 12;
renderNeedle(ctxLayout, angle, 0.7, 0.945, 10, "#c4c4c4");
}
*/
renderText(ctxLayout, "TIZEN WATCH", center.x, center.y - (watchRadius * 0.4), 25, "#999999");
}
/**
* Draws the content of the watch
* @private
*/
function drawWatchContent() {
var datetime = tizen.time.getCurrentDateTime(),
hour = datetime.getHours(),
minute = datetime.getMinutes(),
second = datetime.getSeconds(),
date = datetime.getDate();
// Clear canvas
ctxContent.clearRect(0, 0, ctxContent.canvas.width, ctxContent.canvas.height);
// Draw the hour needle
renderNeedle(ctxContent, Math.PI * (((hour + minute / 60) / 6) - 0.5), 0, 0.50, 3, "#454545");
// Draw the minute needle
renderNeedle(ctxContent, Math.PI * (((minute + second / 60) / 30) - 0.5), 0, 0.70, 3, "#454545");
// Draw the minute/hour circle
// renderCircle(ctxContent, center, 8, "#454545");
thickness = 18;
edge = document.body.clientWidth / 2 - thickness / 2 - 2;
renderArc(ctxContent, center, edge, "#808080", 75, 195); // sleep
renderArc(ctxContent, center, edge, "#FF0000", 210, 277.5); // work
renderArc(ctxContent, center, edge, "#FFFF00", 277.5, 292.5); // lunch
renderArc(ctxContent, center, edge, "#FF0000", 292.5, 352.5); // work
// Draw the second needle
ctxContent.shadowOffsetX = 4;
ctxContent.shadowOffsetY = 4;
renderNeedle(ctxContent, Math.PI * ((second / 30) - 0.5), -0.10, 0.85, 1, "#c4c4c4");
// Draw the second circle
ctxContent.shadowOffsetX = 0;
ctxContent.shadowOffsetY = 0;
renderCircle(ctxContent, center, 5, "#c4c4c4");
// Draw the center circle
renderCircle(ctxContent, center, 2, "#454545");
// Draw the text for date
renderText(ctxContent, date, center.x, center.y + (watchRadius * 0.5), 25, "#999999");
}
/**
* Set default variables
* @private
*/
function setDefaultVariables() {
canvasLayout = document.querySelector("#canvas-layout");
ctxLayout = canvasLayout.getContext("2d");
canvasContent = document.querySelector("#canvas-content");
ctxContent = canvasContent.getContext("2d");
// Set the canvases square
canvasLayout.width = document.body.clientWidth;
canvasLayout.height = canvasLayout.width;
canvasContent.width = document.body.clientWidth;
canvasContent.height = canvasContent.width;
center = {
x: document.body.clientWidth / 2,
y: document.body.clientHeight / 2
};
watchRadius = canvasLayout.width / 2;
}
/**
* Set default event listeners
* @private
*/
function setDefaultEvents() {
// add eventListener to update the screen immediately when the device wakes up
document.addEventListener("visibilitychange", function() {
if (!document.hidden) {
// Draw the content of the watch
drawWatchContent();
}
});
}
/**
* Initiates the application
* @private
*/
function init() {
setDefaultVariables();
setDefaultEvents();
// Draw the basic layout and the content of the watch at the beginning
drawWatchLayout();
drawWatchContent();
// Update the content of the watch every second
setInterval(function() {
drawWatchContent();
}, 1000);
}
window.onload = init;
}());

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1.0.5