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How to zoom out container, after Leaflet reached minZoom?

On one of our main pages, Leaflet map occupies 90% of the page with only the top nav (position: fixed;)
But on touch devices, user can accidentally zoom-in not on a map, but on the entire page. If they do - there is no way for them to un-zoom to see the top nav, because any touch action would zoom-in-out the map.
Ideally, I'm trying to find solution so that the page would zoom-out, after Leaflet reaches minZoom level. Any other ideas are welcome! Thanks!

Cannot be done.
Leaflet relies on the touch-action CSS property to prevent the browser from pinch-zooming the whole page.
Note how there is no value for that property that allows to pinch-zoom only out. Leaflet can only enable/disable pinch-zooming as a whole.
You could disable the touchZoom handler of the map by running something like map.touchZoom.disable(), or map.on('zoomend', function(){ if (map.getZoom()===map.options.minZoom) map.touchZoom.disable() }) but that will disable all pinch-zooming in Leaflet, and enable all pinch-zooming of the whole page.

I want to scroll zoom in and out of an image, but also have pins on that image stay positioned correctly. jQuery

So I want to make a scroll zoom feature on a map I have created. The map contains an image and a number of divs positioned on top of the map marking out positions (pins).
I have found a number of jQuery tools which allows me to scroll zoom on an image. And I could probably try and use the mouse position and scroll amount to edit the coordinates of my divs as well. Is this the best way of going about this, or does anyone know any jQuery tools that will allow me to scroll zoom in and out of divs?
Here are some tools I found for scrolling on images.
image zoomer
Wheel zoom

You could try using leaflet.js. It is a lightweight javascript library meant to be used for maps, but it also work for images. This tutorial could help you start, and you might want to check this post.
Here is a very basic example of what it could look like.

Disable drag once attained maximum bounds in Leaflet

I am working on Leaflet with a custom image whose tiles are being generated using "zoomify". I am currently facing the issues below:
1) On minimum zoom level, the image should not be draggable which is achieved using map.dragging.disable().
But the issue arises when the image is currently at maximum zoom level and user is dragging, as I don't want the focus to go beyond the tiles, i.e user should not be able to see "grey border" once he reaches beyond the bounds limit. Is it possible to do using Leaflet. For example, user drags the image and once grey border is starting to appear, the drag gets disabled. Although it does come back to current position by setting bounceAtZoomLimits: false as well as map.fitBounds(), but that is only when user ends dragging.
2) On Pinch zooming, the user can zoom in/out as much he/she can. Hence the image could contract as much as the user pinch zooms IN as well as pinch zooms OUT. Is it possible to stop this behaviour, i.e the user can only pinch zoom IN to the maximum zoom level set as well as pinch zoom OUT to the minimum zoom level set?
Any help would be appreciated. Thanks :)

Leaflet checks bounds only after dragging. You need to add drag process listener to fix tile layer position in action:
map.setMaxBounds(bounds);
map.on('drag', function() {
map.panInsideBounds(bounds, { animate: false });
});
Example: http://jsfiddle.net/asleepwalker/exqar2w4/
UPD: I wrote a small plugin to perform it. Here is it: https://github.com/asleepwalker/leaflet.hardbounds

This has been answered here.
In Leaflet 1.0.0+ there is an option maxBoundsViscosity to "slow down map dragging" or make "the bounds fully solid".

Zooming image to mouse cursor with Javascript and returning to the images original position

Part of my app requires the user to be able to use the mousewheel to zoom in on an image which is already centered inside a larger container element.
I am using jQueryUI to provide a slider with which the zoom is controlled manually.
When zooming withe mousewheel, the viewport adjusts so that the user is always zooming towards to mouse cursor providing exactly the same behaviour as google maps in terms of zoom functionality.
Also, in order to provide a better experience than using css transitions I have written a momentum based smooth scroll algorithm to make the zooming as smooth as possible.
Everything works perfectly with one exception.
To replicate the problem please follow these steps on the provided jsFiddle:
move mouse cursor to the center of the image.
Very gently move the mousewheel one notch so that the smoothwheel takes over an zooms you in a little.
Then move the mouse cursor to another point of the already slightly zoomed image
Zoom in again, as far as you want this time
Finally zoom all the way out
You will see that the zoomed out image is now misplaced (as the translates have not been removed).
The behaviour I want is for the zoomed out image to return to its original position once the scale is set back to 1.
If you remove the css translate from the image in Firebug you will see that the image returns to the correct location.
Therefore this could easily be achieved with a simple conditional like so:
if(scale == 1){
//remove transforms completely
}
However doing this would provide a jumpy experience and I would like the image to gradually zoom back out to the original position as the user zooms out.
It is worth mentioning that if you zoom all the way in without moving the mouse you will find that everything is correct when you zoom back out. This is simple because no translate gets added to the elements transform, simply a scale and transform-origin. In my code the translate only gets added when you change zoom position with the mouse mid zoom.
Unfortunately I cant seem to get my head around the best way of going about this.
Here is a working jsFiddle:
http://jsfiddle.net/3k332/15/
Thanks in advance for any help.
NOTE: I am well aware that there is some redundant code in my fiddle and that its not particularly elegant but this is merely a quick mock up to help you understand the problem.

Clustering in Google Maps

I have developed an application using google maps v3. Here, I need to show some markers at the initial zoom level. The problem is on mouseover of the marker, I need to show a div content. The div is not properly aligned, that is for the marker on the extreme left or right, the div is getting partly hidden. How do I show the div with proper alignment viz., inside the map itself? could someone help me with this please? Thanks in advance.

First get the size of the map canvas div, then capture the x coordinates of the marker.
For the mouseover event, write a conditional statement so that if the marker's x coordinate are too close to the left edge, add extra pixels to the x coordinate of the floating div so the floating div shifts to the right to go inside the map canvas. (If the marker is too close to the right edge, reduce the value of x coordinate by certain pixel so that the floating div shifts to the left a bit.)
How much to add or reduce the value of x coordinates depend on how big the floating div is.