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working basic functionality

pull/4624/head
John McLear 2020-12-28 08:40:53 +00:00
parent f6d9c7e705
commit d6075bd042
2 changed files with 36 additions and 20 deletions
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46
src/static/js/ace2_inner.js
View File

@ -888,7 +888,7 @@ function Ace2Inner() {
if (isTimeUp()) return;
const visibleRange = scroll.getVisibleCharRange(rep);
top.console.log('getVisibleCharRange', visibleRange);
// top.console.log('getVisibleCharRange', visibleRange);
const docRange = [0, rep.lines.totalWidth()];
finishedImportantWork = true;
finishedWork = true;
@ -3048,27 +3048,41 @@ function Ace2Inner() {
}
if ((evt.which == 36 && evt.ctrlKey == true) && padShortcutEnabled.ctrlHome) { scroll.setScrollY(0); } // Control Home send to Y = 0
if ((evt.which == 33 || evt.which == 34) && type == 'keydown' && !evt.ctrlKey) {
evt.preventDefault(); // This is required, browsers will try to do normal default behavior on page up / down and the default behavior SUCKS
// This is required, browsers will try to do normal default behavior on page up / down
// and the default behavior SUCKS
evt.preventDefault();
const oldVisibleLineRange = scroll.getVisibleLineRange(rep);
top.console.log('oldviz', oldVisibleLineRange)
let visLines = oldVisibleLineRange[1] - oldVisibleLineRange[0];
let topOffset = rep.selStart[0] - oldVisibleLineRange[0];
if (topOffset < 0) {
topOffset = 0;
}
const visibleLineRange = scroll.getVisibleLineRange(rep); // [0,6]
const isPageDown = evt.which === 34;
const isPageUp = evt.which === 33;
const linesLength = rep.lines.length();
if(isPageDown){
rep.selStart[0] += visLines;
rep.selEnd[0] += visLines;
updateBrowserSelectionFromRep(); // works
scroll.scrollNodeVerticallyIntoView(); // always slightly off...
if (isPageUp) {
// go to the top of the visible content
rep.selStart[0] -= visibleLineRange[1] - visibleLineRange[0];
rep.selEnd[0] -= visibleLineRange[1] - visibleLineRange[0];
// if the new rep is beyond the viewport, put the caret on the last line
if (rep.selStart[0] < 0) {
rep.selStart = [0, 0];
rep.selEnd = [0, 0];
}
}
if (isPageDown) {
// go to the bottom of the last visible content
rep.selStart[0] += visibleLineRange[1];
rep.selEnd[0] += visibleLineRange[1];
// if the new rep is beyond the viewport, put the caret on the last line
if (rep.selStart[0] > linesLength) {
rep.selStart = [linesLength - 1, 0];
rep.selEnd = [linesLength - 1, 0];
}
// TODO: Handle if character is X offset from content
}
updateBrowserSelectionFromRep(); // works
scroll.scrollNodeVerticallyIntoView(); // TODO: always slightly off...
}
// scroll to viewport when user presses arrow keys and caret is out of the viewport

10
src/static/js/scroll.js
View File

@ -281,14 +281,16 @@ Scroll.prototype.scrollNodeVerticallyIntoView = function (rep, innerHeight) {
// So, when the line scrolled gets outside of the viewport we let the browser handle it.
const linePosition = caretPosition.getPosition();
if (linePosition) {
top.console.log('linepos', linePosition);
// top.console.log('linepos', linePosition);
const distanceOfTopOfViewport = linePosition.top - viewport.top;
const distanceOfBottomOfViewport = viewport.bottom - linePosition.bottom - 20;
// TODO: Replace the below hack with the current caret location line height
const HACK = 20;
const distanceOfBottomOfViewport = viewport.bottom - linePosition.bottom - HACK;
// guessed value.. The above line needs to know the height of this element!
const caretIsAboveOfViewport = distanceOfTopOfViewport < 0;
const caretIsBelowOfViewport = distanceOfBottomOfViewport < 0;
top.console.log('isbelow', caretIsBelowOfViewport);
// top.console.log('isbelow', caretIsBelowOfViewport);
if (caretIsAboveOfViewport) {
const pixelsToScroll =
distanceOfTopOfViewport - this._getPixelsRelativeToPercentageOfViewport(innerHeight, true);
@ -345,7 +347,7 @@ Scroll.prototype.getVisibleLineRange = function (rep) {
Scroll.prototype.getVisibleCharRange = function (rep) {
const lineRange = this.getVisibleLineRange(rep);
top.console.log(rep.lines);
// top.console.log(rep.lines);
return [rep.lines.offsetOfIndex(lineRange[0]), rep.lines.offsetOfIndex(lineRange[1])];
};