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const Marks = {
previousPositionRegisters: ["`", "'"],
localRegisters: {},
currentRegistryEntry: null,
mode: null,
exit(continuation = null) {
if (this.mode != null) {
this.mode.exit();
}
this.mode = null;
if (continuation) {
return continuation(); // TODO(philc): Is this return necessary?
}
},
// This returns the key which is used for storing mark locations in localStorage.
getLocationKey(keyChar) {
return `vimiumMark|${window.location.href.split("#")[0]}|${keyChar}`;
},
getMarkString() {
return JSON.stringify({
scrollX: window.scrollX,
scrollY: window.scrollY,
hash: window.location.hash,
});
},
setPreviousPosition() {
const markString = this.getMarkString();
for (const reg of this.previousPositionRegisters) {
this.localRegisters[reg] = markString;
}
},
showMessage(message, keyChar) {
HUD.show(`${message} \"${keyChar}\".`, 1000);
},
// If <Shift> is depressed, then it's a global mark, otherwise it's a local mark. This is
// consistent vim's [A-Z] for global marks and [a-z] for local marks. However, it also admits
// other non-Latin characters. The exceptions are "`" and "'", which are always considered local
// marks. The "swap" command option inverts global and local marks.
isGlobalMark(event, keyChar) {
let shiftKey = event.shiftKey;
if (this.currentRegistryEntry.options.swap) {
shiftKey = !shiftKey;
}
return shiftKey && !this.previousPositionRegisters.includes(keyChar);
},
activateCreateMode(_count, { registryEntry }) {
this.currentRegistryEntry = registryEntry;
this.mode = new Mode();
this.mode.init({
name: "create-mark",
indicator: "Create mark...",
exitOnEscape: true,
suppressAllKeyboardEvents: true,
keydown: (event) => {
if (KeyboardUtils.isPrintable(event)) {
const keyChar = KeyboardUtils.getKeyChar(event);
this.exit(() => {
if (this.isGlobalMark(event, keyChar)) {
// We record the current scroll position, but only if this is the top frame within the
// tab. Otherwise, we'll fetch the scroll position of the top frame from the
// background page later.
let scrollX, scrollY;
if (DomUtils.isTopFrame()) {
[scrollX, scrollY] = [window.scrollX, window.scrollY];
}
chrome.runtime.sendMessage({
handler: "createMark",
markName: keyChar,
scrollX,
scrollY,
}, () => this.showMessage("Created global mark", keyChar));
} else {
localStorage[this.getLocationKey(keyChar)] = this.getMarkString();
this.showMessage("Created local mark", keyChar);
}
});
return handlerStack.suppressEvent;
}
},
});
},
activateGotoMode(_count, { registryEntry }) {
this.currentRegistryEntry = registryEntry;
this.mode = new Mode();
this.mode.init({
name: "goto-mark",
indicator: "Go to mark...",
exitOnEscape: true,
suppressAllKeyboardEvents: true,
keydown: (event) => {
if (KeyboardUtils.isPrintable(event)) {
this.exit(() => {
const keyChar = KeyboardUtils.getKeyChar(event);
if (this.isGlobalMark(event, keyChar)) {
// This key must match @getLocationKey() in the back end.
const key = `vimiumGlobalMark|${keyChar}`;
chrome.storage.local.get(key, function (items) {
if (key in items) {
chrome.runtime.sendMessage({ handler: "gotoMark", markName: keyChar });
HUD.show(`Jumped to global mark '${keyChar}'`, 1000);
} else {
HUD.show(`Global mark not set '${keyChar}'`, 1000);
}
});
} else {
const markString = this.localRegisters[keyChar] != null
? this.localRegisters[keyChar]
: localStorage[this.getLocationKey(keyChar)];
if (markString != null) {
this.setPreviousPosition();
const position = JSON.parse(markString);
if (position.hash && (position.scrollX === 0) && (position.scrollY === 0)) {
window.location.hash = position.hash;
} else {
window.scrollTo(position.scrollX, position.scrollY);
}
this.showMessage("Jumped to local mark", keyChar);
} else {
this.showMessage("Local mark not set", keyChar);
}
}
});
return handlerStack.suppressEvent;
}
},
});
},
};
window.Marks = Marks;
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