1 | /// <reference lib="dom"/>
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2 |
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3 | declare namespace screenfull {
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4 | type RawEventNames = {
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5 | readonly requestFullscreen: string;
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6 | readonly exitFullscreen: string;
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7 | readonly fullscreenElement: string;
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8 | readonly fullscreenEnabled: string;
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9 | readonly fullscreenchange: string;
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10 | readonly fullscreenerror: string;
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11 | };
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12 |
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13 | type EventName = 'change' | 'error';
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14 |
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15 | interface Screenfull {
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16 | /**
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17 | Whether fullscreen is active.
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18 | */
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19 | readonly isFullscreen: boolean;
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20 |
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21 | /**
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22 | The element currently in fullscreen, otherwise `null`.
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23 | */
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24 | readonly element: Element | null;
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25 |
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26 | /**
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27 | Whether you are allowed to enter fullscreen. If your page is inside an `<iframe>` you will need to add a `allowfullscreen` attribute (+ `webkitallowfullscreen` and `mozallowfullscreen`).
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28 |
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29 | @example
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30 | ```
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31 | if (screenfull.isEnabled) {
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32 | screenfull.request();
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33 | }
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34 | ```
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35 | */
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36 | readonly isEnabled: true;
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37 |
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38 | /**
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39 | Exposes the raw properties (prefixed if needed) used internally.
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40 | */
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41 | raw: RawEventNames;
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42 |
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43 | /**
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44 | Make an element fullscreen.
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45 |
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46 | If your page is inside an `<iframe>` you will need to add a `allowfullscreen` attribute (+ `webkitallowfullscreen` and `mozallowfullscreen`).
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47 |
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48 | Keep in mind that the browser will only enter fullscreen when initiated by user events like click, touch, key.
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49 |
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50 | @param element - Default is `<html>`. If called with another element than the currently active, it will switch to that if it's a descendant.
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51 | @param options - [`FullscreenOptions`](https://developer.mozilla.org/en-US/docs/Web/API/FullscreenOptions).
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52 | @returns A promise that resolves after the element enters fullscreen.
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53 |
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54 | @example
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55 | ```
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56 | // Fullscreen the page
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57 | document.getElementById('button').addEventListener('click', () => {
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58 | if (screenfull.isEnabled) {
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59 | screenfull.request();
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60 | } else {
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61 | // Ignore or do something else
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62 | }
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63 | });
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64 |
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65 | // Fullscreen an element
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66 | const element = document.getElementById('target');
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67 |
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68 | document.getElementById('button').addEventListener('click', () => {
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69 | if (screenfull.isEnabled) {
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70 | screenfull.request(element);
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71 | }
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72 | });
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73 |
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74 | // Fullscreen an element with options
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75 | const element = document.getElementById('target');
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76 |
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77 | document.getElementById('button').addEventListener('click', () => {
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78 | if (screenfull.isEnabled) {
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79 | screenfull.request(element, {navigationUI: 'hide'});
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80 | }
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81 | });
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82 |
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83 | // Fullscreen an element with jQuery
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84 | const element = $('#target')[0]; // Get DOM element from jQuery collection
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85 |
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86 | $('#button').on('click', () => {
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87 | if (screenfull.isEnabled) {
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88 | screenfull.request(element);
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89 | }
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90 | });
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91 | ```
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92 | */
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93 | request(element?: Element, options?: FullscreenOptions): Promise<void>;
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94 |
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95 | /**
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96 | Brings you out of fullscreen.
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97 |
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98 | @returns A promise that resolves after the element exits fullscreen.
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99 | */
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100 | exit(): Promise<void>;
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101 |
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102 | /**
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103 | Requests fullscreen if not active, otherwise exits.
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104 |
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105 | @param element - Default is `<html>`. If called with another element than the currently active, it will switch to that if it's a descendant.
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106 | @param options - [`FullscreenOptions`](https://developer.mozilla.org/en-US/docs/Web/API/FullscreenOptions).
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107 | @returns A promise that resolves after the element enters/exits fullscreen.
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108 |
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109 | @example
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110 | ```
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111 | // Toggle fullscreen on a image with jQuery
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112 |
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113 | $('img').on('click', event => {
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114 | if (screenfull.isEnabled) {
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115 | screenfull.toggle(event.target);
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116 | }
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117 | });
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118 | ```
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119 | */
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120 | toggle(element?: Element, options?: FullscreenOptions): Promise<void>;
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121 |
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122 | /**
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123 | Add a listener for when the browser switches in and out of fullscreen or when there is an error.
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124 |
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125 | @example
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126 | ```
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127 | // Detect fullscreen change
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128 | if (screenfull.isEnabled) {
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129 | screenfull.on('change', () => {
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130 | console.log('Am I fullscreen?', screenfull.isFullscreen ? 'Yes' : 'No');
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131 | });
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132 | }
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133 |
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134 | // Detect fullscreen error
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135 | if (screenfull.isEnabled) {
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136 | screenfull.on('error', event => {
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137 | console.error('Failed to enable fullscreen', event);
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138 | });
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139 | }
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140 | ```
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141 | */
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142 | on(name: EventName, handler: (event: Event) => void): void;
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143 |
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144 | /**
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145 | Remove a previously registered event listener.
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146 |
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147 | @example
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148 | ```
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149 | screenfull.off('change', callback);
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150 | ```
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151 | */
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152 | off(name: EventName, handler: (event: Event) => void): void;
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153 |
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154 | /**
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155 | Alias for `.on('change', function)`.
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156 | */
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157 | onchange(handler: (event: Event) => void): void;
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158 |
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159 | /**
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160 | Alias for `.on('error', function)`.
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161 | */
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162 | onerror(handler: (event: Event) => void): void;
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163 | }
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164 | }
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165 |
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166 | /**
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167 | Simple wrapper for cross-browser usage of the JavaScript [Fullscreen API](https://developer.mozilla.org/en/DOM/Using_full-screen_mode), which lets you bring the page or any element into fullscreen. Smoothens out the browser implementation differences, so you don't have to.
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168 | */
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169 | declare const screenfull: screenfull.Screenfull;
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170 |
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171 | export = screenfull;
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172 | export as namespace screenfull;
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