Namespace: Hotkeys

Members

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<static> Keys

Available hotkeys that can be passed to instance.UI.hotkeys.on or instance.UI.hotkeys.off.

Properties:

Name	Type	Description
CTRL_SHIFT_EQUAL	string	Rotate the document clockwise
COMMAND_SHIFT_EQUAL	string	Rotate the document clockwise
CTRL_SHIFT_MINUS	string	Rotate the document counterclockwise
COMMAND_SHIFT_MINUS	string	Rotate the document counterclockwise
CTRL_C	string	Copy selected text or annotations
COMMAND_C	string	Copy selected text or annotations
CTRL_V	string	Paste text or annotations
COMMAND_V	string	Paste text or annotations
CTRL_Z	string	Undo an annotation change
COMMAND_Z	string	Undo an annotation change
CTRL_Y	string	Redo an annotation change
COMMAND_SHIFT_Z	string	Redo an annotation change
CTRL_O	string	Open the file picker
COMMAND_O	string	Open the file picker
CTRL_F	string	Open the search overlay
COMMAND_F	string	Open the search overlay
CTRL_EQUAL	string	Zoom in
COMMAND_EQUAL	string	Zoom in
CTRL_MINUS	string	Zoom out
COMMAND_MINUS	string	Zoom out
CTRL_0	string	Fit the document to the screen width in a small screen(< 640px), otherwise fit it to its original size
COMMAND_0	string	Fit the document to the screen width in a small screen(< 640px), otherwise fit it to its original size
CTRL_P	string	Print
COMMAND_P	string	Print
CTRL_B	string	Quickly bookmark a page and open the bookmark panel
COMMAND_B	string	Quickly bookmark a page and open the bookmark panel
PAGE_UP	string	Go to the previous page
PAGE_DOWN	string	Go to the next page
UP	string	Go to the previous page in single layout mode (ArrowUp)
DOWN	string	Go to the next page in single layout mode (ArrowDown)
SPACE	string	Hold to switch to Pan mode and release to return to previous tool
ESCAPE	string	Select the AnnotationEdit tool
P	string	Select the Pan tool
A	string	Select the AnnotationCreateArrow tool
C	string	Select the AnnotationCreateCallout tool
E	string	Select the AnnotationEraser tool
F	string	Select the AnnotationCreateFreeHand tool
I	string	Select the AnnotationCreateStamp tool
L	string	Select the AnnotationCreateLine tool
N	string	Select the AnnotationCreateSticky tool
O	string	Select the AnnotationCreateEllipse tool
R	string	Select the AnnotationCreateRectangle tool
Q	string	Select the AnnotationCreateRubberStamp tool
T	string	Select the AnnotationCreateFreeText tool
S	string	Open the signature modal or the overlay
G	string	Select the AnnotationCreateTextSquiggly tool
H	string	Select the AnnotationCreateTextHighlight tool
K	string	Select the AnnotationCreateTextStrikeout tool
U	string	Select the AnnotationCreateTextUnderline tool

Methods

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<static> off( [key] [, handler])

Remove an event handler for the given hotkey

Parameters:

Name	Type	Argument	Description
key	string | UI.Hotkeys.Keys	<optional>	An optional keyboard key. If not passed, all handlers will be removed
handler	function	<optional>	An optional function. If not passed, all handlers of the given key will be removed

Example

WebViewer(...)
  .then(function(instance) {
      // this will remove all handlers for ctrl = and command =
      instance.UI.hotkeys.off(instance.UI.hotkeys.Keys.CTRL_EQUAL);
      instance.UI.hotkeys.off(instance.UI.hotkeys.Keys.COMMAND_EQUAL);
  });

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<static> on(key [, handler])

Add an event handler for the given hotkey

Parameters:

Name	Type	Argument	Description
key	string | UI.Hotkeys.Keys		A keyboard key If a hotkey is consisted of more than one key. Those keys should be connected using '+'.
handler	function | object	<optional>	An optional argument If it is undefined, the default handler of the given key will be registered If it is an function, it will be called on key down If it is an object, it should have the shape of { keydown: func1, keyup: func2 }. Func1 will be called on keydown while func2 will be called on keyup

Example

WebViewer(...)
  .then(function(instance) {
    const { UI } = instance;
      // this will register the default zoom in handler
      UI.hotkeys.on(UI.hotkeys.Keys.CTRL_EQUAL);
      UI.hotkeys.on(UI.hotkeys.Keys.COMMAND_EQUAL);
       // this will be called on keydown
      UI.hotkeys.on('ctrl+d, command+d', e => {
        e.preventDefault();
        instance.Core.documentViewer.closeDocument();
      });
       UI.hotkeys.on('ctrl+g', {
        keydown: e => {
          console.log('ctrl+g is pressed!');
        },
        keyup: e => {
          console.log('ctrl+g is released!')
        },
      });
  });